13432404123 has 24 divisors (see below), whose sum is σ = 21139307760. Its totient is φ = 8428170240.

The previous prime is 13432404119. The next prime is 13432404131. The reversal of 13432404123 is 32140423431.

13432404123 is a `hidden beast` number, since 1 + 3 + 4 + 3 + 240 + 412 + 3 = 666.

It is not a de Polignac number, because 13432404123 - 2² = 13432404119 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (13432404143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 852918 + ... + 868523.

It is an arithmetic number, because the mean of its divisors is an integer number (880804490).

Almost surely, 2^13432404123 is an apocalyptic number.

13432404123 is a deficient number, since it is larger than the sum of its proper divisors (7706903637).

13432404123 is a wasteful number, since it uses less digits than its factorization.

13432404123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721484 (or 1721461 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 13432404123 its reverse (32140423431), we get a palindrome (45572827554).

The spelling of 13432404123 in words is "thirteen billion, four hundred thirty-two million, four hundred four thousand, one hundred twenty-three".