123402244142032 has 20 divisors (see below), whose sum is σ = 239093143656640. Its totient is φ = 61700787714528.

The previous prime is 123402244141991. The next prime is 123402244142117. The reversal of 123402244142032 is 230241442204321.

It is a super-2 number, since 2×123402244142032² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

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, 17838858 + ... + 23770345.

It is an arithmetic number, because the mean of its divisors is an integer number (11954657182832).

Almost surely, 2^{123402244142032} is an apocalyptic number.

It is an amenable number.

123402244142032 is a deficient number, since it is larger than the sum of its proper divisors (115690899514608).

123402244142032 is a wasteful number, since it uses less digits than its factorization.

123402244142032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41794570 (or 41794564 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 123402244142032 its reverse (230241442204321), we get a palindrome (353643686346353).

The spelling of 123402244142032 in words is "one hundred twenty-three trillion, four hundred two billion, two hundred forty-four million, one hundred forty-two thousand, thirty-two".