123233333402431 has 64 divisors (see below), whose sum is σ = 157229177241600. Its totient is φ = 94267873155456.

The previous prime is 123233333402407. The next prime is 123233333402447. The reversal of 123233333402431 is 134204333332321.

It is a happy number.

It is not a de Polignac number, because 123233333402431 - 2⁷ = 123233333402303 is a prime.

It is a super-2 number, since 2×123233333402431² (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 (123233333402471) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13781736 + ... + 20890258.

It is an arithmetic number, because the mean of its divisors is an integer number (2456705894400).

Almost surely, 2^{123233333402431} is an apocalyptic number.

123233333402431 is a deficient number, since it is larger than the sum of its proper divisors (33995843839169).

123233333402431 is a wasteful number, since it uses less digits than its factorization.

123233333402431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7108708.

The product of its (nonzero) digits is 279936, while the sum is 37.

Adding to 123233333402431 its reverse (134204333332321), we get a palindrome (257437666734752).

The spelling of 123233333402431 in words is "one hundred twenty-three trillion, two hundred thirty-three billion, three hundred thirty-three million, four hundred two thousand, four hundred thirty-one".