123320252431326 has 32 divisors (see below), whose sum is σ = 247504289760000. Its totient is φ = 40962862226880.

The previous prime is 123320252431267. The next prime is 123320252431379. The reversal of 123320252431326 is 623134252023321.

It is a super-2 number, since 2×123320252431326² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2914711 + ... + 15972978.

It is an arithmetic number, because the mean of its divisors is an integer number (7734509055000).

Almost surely, 2^{123320252431326} is an apocalyptic number.

123320252431326 is an abundant number, since it is smaller than the sum of its proper divisors (124184037328674).

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

123320252431326 is a wasteful number, since it uses less digits than its factorization.

123320252431326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18891504.

The product of its (nonzero) digits is 311040, while the sum is 39.

The spelling of 123320252431326 in words is "one hundred twenty-three trillion, three hundred twenty billion, two hundred fifty-two million, four hundred thirty-one thousand, three hundred twenty-six".