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231131253020124 = 2231014191408732309
BaseRepresentation
bin110100100011011001110000…
…001110111001010111011100
31010022100221011102110111122010
4310203121300032321113130
5220243323301233120444
62135324122022551220
766453452626022232
oct6443316016712734
91108327142414563
10231131253020124
1167711239828a46
1221b0a950b98510
139bc77783378c2
144110b53094952
151bac3c34532b9
hexd236703b95dc

231131253020124 has 96 divisors (see below), whose sum is σ = 546001448025600. Its totient is φ = 76091129593600.

The previous prime is 231131253020099. The next prime is 231131253020167. The reversal of 231131253020124 is 421020352131132.

It is a super-2 number, since 2×2311312530201242 (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231131253020091 and 231131253020100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7153756882 + ... + 7153789190.

It is an arithmetic number, because the mean of its divisors is an integer number (5687515083600).

Almost surely, 2231131253020124 is an apocalyptic number.

It is an amenable number.

231131253020124 is an abundant number, since it is smaller than the sum of its proper divisors (314870195005476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231131253020124 is a wasteful number, since it uses less digits than its factorization.

231131253020124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46923 (or 46921 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 231131253020124 in words is "two hundred thirty-one trillion, one hundred thirty-one billion, two hundred fifty-three million, twenty thousand, one hundred twenty-four".

Divisors: 1 2 3 4 6 12 101 202 303 404 419 606 838 1212 1257 1676 2514 5028 14087 28174 32309 42261 42319 56348 64618 84522 84638 96927 126957 129236 169044 169276 193854 253914 387708 507828 1422787 2845574 3263209 4268361 5691148 5902453 6526418 8536722 9789627 11804906 13052836 13537471 17073444 17707359 19579254 23609812 27074942 35414718 39158508 40612413 54149884 70829436 81224826 162449652 455136883 596147753 910273766 1192295506 1365410649 1367284571 1788443259 1820547532 2384591012 2730821298 2734569142 3576886518 4101853713 5461642596 5469138284 7153773036 8203707426 16407414852 45968825183 91937650366 137906475549 183875300732 190702353977 275812951098 381404707954 551625902196 572107061931 762809415908 1144214123862 2288428247724 19260937751677 38521875503354 57782813255031 77043751006708 115565626510062 231131253020124