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131020201110 = 23525740941549
BaseRepresentation
bin111101000000101101…
…0011001110010010110
3110112012000121211110010
41322001122121302112
54121312132413420
6140105001341050
712315542222421
oct1720132316226
9415160554403
10131020201110
1150624540347
1221486497786
13c480365826
1464acb949b8
15361c6d54e0
hex1e81699c96

131020201110 has 64 divisors (see below), whose sum is σ = 316451448000. Its totient is φ = 34716844032.

The previous prime is 131020201087. The next prime is 131020201133. The reversal of 131020201110 is 11102020131.

It is an interprime number because it is at equal distance from previous prime (131020201087) and next prime (131020201133).

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, 3132616 + ... + 3174164.

It is an arithmetic number, because the mean of its divisors is an integer number (4944553875).

Almost surely, 2131020201110 is an apocalyptic number.

131020201110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131020201110 is an abundant number, since it is smaller than the sum of its proper divisors (185431246890).

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

131020201110 is a wasteful number, since it uses less digits than its factorization.

131020201110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42225.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 131020201110 its reverse (11102020131), we get a palindrome (142122221241).

The spelling of 131020201110 in words is "one hundred thirty-one billion, twenty million, two hundred one thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 257 409 514 771 818 1227 1285 1542 2045 2454 2570 3855 4090 6135 7710 12270 41549 83098 105113 124647 207745 210226 249294 315339 415490 525565 623235 630678 1051130 1246470 1576695 3153390 10678093 16993541 21356186 32034279 33987082 50980623 53390465 64068558 84967705 101961246 106780930 160171395 169935410 254903115 320342790 509806230 4367340037 8734680074 13102020111 21836700185 26204040222 43673400370 65510100555 131020201110