231513450051123 has 24 divisors (see below), whose sum is σ = 336818124530160. Its totient is φ = 153230107380480.

The previous prime is 231513450051097. The next prime is 231513450051139. The reversal of 231513450051123 is 321150054315132.

It is a happy number.

231513450051123 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 1 + 34 + 500 + 5 + 112 + 3 = 666.

It is not a de Polignac number, because 231513450051123 - 2³⁰ = 231512376309299 is a prime.

It is a super-2 number, since 2×231513450051123² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (231513450051223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108886215 + ... + 110992047.

It is an arithmetic number, because the mean of its divisors is an integer number (14034088522090).

Almost surely, 2^{231513450051123} is an apocalyptic number.

231513450051123 is a deficient number, since it is larger than the sum of its proper divisors (105304674479037).

231513450051123 is a wasteful number, since it uses less digits than its factorization.

231513450051123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2193859 (or 2193856 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

The spelling of 231513450051123 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty million, fifty-one thousand, one hundred twenty-three".