123625501131 has 16 divisors (see below), whose sum is σ = 180482462208. Its totient is φ = 74648066400.

The previous prime is 123625501123. The next prime is 123625501133. The reversal of 123625501131 is 131105526321.

It is not a de Polignac number, because 123625501131 - 2³ = 123625501123 is a prime.

It is a super-2 number, since 2×123625501131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123625501133) 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, 6902916 + ... + 6920801.

It is an arithmetic number, because the mean of its divisors is an integer number (11280153888).

Almost surely, 2^123625501131 is an apocalyptic number.

123625501131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123625501131 is a deficient number, since it is larger than the sum of its proper divisors (56856961077).

123625501131 is a wasteful number, since it uses less digits than its factorization.

123625501131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13824002.

The product of its (nonzero) digits is 5400, while the sum is 30.

The spelling of 123625501131 in words is "one hundred twenty-three billion, six hundred twenty-five million, five hundred one thousand, one hundred thirty-one".