123525142203231 has 6 divisors (see below), whose sum is σ = 178425205404680. Its totient is φ = 82350094802148.

The previous prime is 123525142203149. The next prime is 123525142203269. The reversal of 123525142203231 is 132302241525321.

123525142203231 is a `hidden beast` number, since 1 + 2 + 352 + 51 + 4 + 2 + 20 + 3 + 231 = 666.

It is not a de Polignac number, because 123525142203231 - 2²¹ = 123525140106079 is a prime.

It is a super-2 number, since 2×123525142203231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123525142207231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6862507900171 + ... + 6862507900188.

Almost surely, 2^{123525142203231} is an apocalyptic number.

123525142203231 is a deficient number, since it is larger than the sum of its proper divisors (54900063201449).

123525142203231 is a wasteful number, since it uses less digits than its factorization.

123525142203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13725015800365 (or 13725015800362 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 123525142203231 its reverse (132302241525321), we get a palindrome (255827383728552).

The spelling of 123525142203231 in words is "one hundred twenty-three trillion, five hundred twenty-five billion, one hundred forty-two million, two hundred three thousand, two hundred thirty-one".