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131123030023122 = 23181331609159887
BaseRepresentation
bin11101110100000101110101…
…101000000101101111010010
3122012021020110102010110001220
4131310011311220011233102
5114141304431141214442
61142513031032505510
736422216630331534
oct3564056550055722
9565236412113056
10131123030023122
1138863a68094485
121285863154b296
135821b05701c77
14245456212b854
151025c26cd9eec
hex774175a05bd2

131123030023122 has 64 divisors (see below), whose sum is σ = 264539435317248. Its totient is φ = 43327041912000.

The previous prime is 131123030023121. The next prime is 131123030023199. The reversal of 131123030023122 is 221320030321131.

It is a junction number, because it is equal to n+sod(n) for n = 131123030023092 and 131123030023101.

It is not an unprimeable number, because it can be changed into a prime (131123030023121) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2189477463 + ... + 2189537349.

It is an arithmetic number, because the mean of its divisors is an integer number (4133428676832).

Almost surely, 2131123030023122 is an apocalyptic number.

131123030023122 is an abundant number, since it is smaller than the sum of its proper divisors (133416405294126).

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

131123030023122 is a wasteful number, since it uses less digits than its factorization.

131123030023122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66495.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 131123030023122 its reverse (221320030321131), we get a palindrome (352443060344253).

The spelling of 131123030023122 in words is "one hundred thirty-one trillion, one hundred twenty-three billion, thirty million, twenty-three thousand, one hundred twenty-two".

Divisors: 1 2 3 6 181 331 362 543 662 993 1086 1986 6091 12182 18273 36546 59887 59911 119774 119822 179661 179733 359322 359466 1102471 2016121 2204942 3307413 4032242 6048363 6614826 10839547 12096726 19822597 21679094 32518641 39645194 59467791 65037282 118935582 364771717 364917901 729543434 729835802 1094315151 1094753703 2188630302 2189507406 3587890057 7175780114 10763670171 21527340342 66023680777 120739438327 132047361554 198071042331 241478876654 362218314981 396142084662 724436629962 21853838337187 43707676674374 65561515011561 131123030023122