123012240242432 has 72 divisors (see below), whose sum is σ = 251359410986880. Its totient is φ = 60063220915200.

The previous prime is 123012240242417. The next prime is 123012240242443. The reversal of 123012240242432 is 234242042210321.

It is a super-2 number, since 2×123012240242432² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24687338 + ... + 29248745.

Almost surely, 2^{123012240242432} is an apocalyptic number.

It is an amenable number.

123012240242432 is an abundant number, since it is smaller than the sum of its proper divisors (128347170744448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123012240242432 is an equidigital number, since it uses as much as digits as its factorization.

123012240242432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53936309 (or 53936295 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 123012240242432 its reverse (234242042210321), we get a palindrome (357254282452753).

The spelling of 123012240242432 in words is "one hundred twenty-three trillion, twelve billion, two hundred forty million, two hundred forty-two thousand, four hundred thirty-two".