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131032120120 = 23511514757859
BaseRepresentation
bin111101000001000011…
…1110111101100111000
3110112012212001101020221
41322002013313230320
54121323210320440
6140110105025424
712316045433626
oct1720207675470
9415185041227
10131032120120
1150630241270
122148a485274
13c4829799b5
1464b05b8516
15361d78bd4a
hex1e821f7b38

131032120120 has 64 divisors (see below), whose sum is σ = 321692342400. Its totient is φ = 47637962880.

The previous prime is 131032120111. The next prime is 131032120133. The reversal of 131032120120 is 21021230131.

It is a junction number, because it is equal to n+sod(n) for n = 131032120094 and 131032120103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2235751 + ... + 2293609.

It is an arithmetic number, because the mean of its divisors is an integer number (5026442850).

Almost surely, 2131032120120 is an apocalyptic number.

131032120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131032120120 is an abundant number, since it is smaller than the sum of its proper divisors (190660222280).

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

131032120120 is a wasteful number, since it uses less digits than its factorization.

131032120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63028 (or 63024 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 131032120120 its reverse (21021230131), we get a palindrome (152053350251).

It can be divided in two parts, 131032 and 120120, that added together give a palindrome (251152).

The spelling of 131032120120 in words is "one hundred thirty-one billion, thirty-two million, one hundred twenty thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 11 20 22 40 44 55 88 110 220 440 5147 10294 20588 25735 41176 51470 56617 57859 102940 113234 115718 205880 226468 231436 283085 289295 452936 462872 566170 578590 636449 1132340 1157180 1272898 2264680 2314360 2545796 3182245 5091592 6364490 12728980 25457960 297800273 595600546 1191201092 1489001365 2382402184 2978002730 3275803003 5956005460 6551606006 11912010920 13103212012 16379015015 26206424024 32758030030 65516060060 131032120120