431123402004 has 48 divisors (see below), whose sum is σ = 1029768180672. Its totient is φ = 140308584192.

The previous prime is 431123401979. The next prime is 431123402077. The reversal of 431123402004 is 400204321134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1107142 + ... + 1444994.

It is an arithmetic number, because the mean of its divisors is an integer number (21453503764).

Almost surely, 2^431123402004 is an apocalyptic number.

It is an amenable number.

431123402004 is an abundant number, since it is smaller than the sum of its proper divisors (598644778668).

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

431123402004 is a wasteful number, since it uses less digits than its factorization.

431123402004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 340376 (or 340374 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 431123402004 its reverse (400204321134), we get a palindrome (831327723138).

The spelling of 431123402004 in words is "four hundred thirty-one billion, one hundred twenty-three million, four hundred two thousand, four".