123531505514252 has 12 divisors (see below), whose sum is σ = 235832874163656. Its totient is φ = 56150684324640.

The previous prime is 123531505514227. The next prime is 123531505514341. The reversal of 123531505514252 is 252415505135321.

It is a Harshad number since it is a multiple of its sum of digits (44), and also a Moran number because the ratio is a prime number: 2807534216233 = 123531505514252 / (1 + 2 + 3 + 5 + 3 + 1 + 5 + 0 + 5 + 5 + 1 + 4 + 2 + 5 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1403767108073 + ... + 1403767108160.

It is an arithmetic number, because the mean of its divisors is an integer number (19652739513638).

Almost surely, 2^{123531505514252} is an apocalyptic number.

It is an amenable number.

123531505514252 is a deficient number, since it is larger than the sum of its proper divisors (112301368649404).

123531505514252 is a wasteful number, since it uses less digits than its factorization.

123531505514252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2807534216248 (or 2807534216246 counting only the distinct ones).

The product of its (nonzero) digits is 900000, while the sum is 44.

The spelling of 123531505514252 in words is "one hundred twenty-three trillion, five hundred thirty-one billion, five hundred five million, five hundred fourteen thousand, two hundred fifty-two".