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10123243131 = 331164116927
BaseRepresentation
bin10010110110110010…
…00110111001111011
3222010111200000220210
421123121012321323
5131213022240011
64352304122203
7505602101241
oct113331067173
928114600823
1010123243131
114325341441
121b66306363
13c543ab5c1
146c0684791
153e3b046a6
hex25b646e7b

10123243131 has 16 divisors (see below), whose sum is σ = 13562984448. Its totient is φ = 6716236800.

The previous prime is 10123243049. The next prime is 10123243133. The reversal of 10123243131 is 13134232101.

It is not a de Polignac number, because 10123243131 - 211 = 10123241083 is a prime.

It is a super-2 number, since 2×101232431312 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10123243098 and 10123243107.

It is not an unprimeable number, because it can be changed into a prime (10123243133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589590 + ... + 606516.

It is an arithmetic number, because the mean of its divisors is an integer number (847686528).

Almost surely, 210123243131 is an apocalyptic number.

10123243131 is a deficient number, since it is larger than the sum of its proper divisors (3439741317).

10123243131 is a wasteful number, since it uses less digits than its factorization.

10123243131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17882.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 10123243131 its reverse (13134232101), we get a palindrome (23257475232).

The spelling of 10123243131 in words is "ten billion, one hundred twenty-three million, two hundred forty-three thousand, one hundred thirty-one".

Divisors: 1 3 311 641 933 1923 16927 50781 199351 598053 5264297 10850207 15792891 32550621 3374414377 10123243131