123400304013424 has 20 divisors (see below), whose sum is σ = 239088317056336. Its totient is φ = 61700093160192.

The previous prime is 123400304013397. The next prime is 123400304013457. The reversal of 123400304013424 is 424310403004321.

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, 17220712 + ... + 23309944.

Almost surely, 2^{123400304013424} is an apocalyptic number.

It is an amenable number.

123400304013424 is a deficient number, since it is larger than the sum of its proper divisors (115688013042912).

123400304013424 is a wasteful number, since it uses less digits than its factorization.

123400304013424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7355824 (or 7355818 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 123400304013424 its reverse (424310403004321), we get a palindrome (547710707017745).

The spelling of 123400304013424 in words is "one hundred twenty-three trillion, four hundred billion, three hundred four million, thirteen thousand, four hundred twenty-four".