31223434523404 has 24 divisors (see below), whose sum is σ = 54682788591200. Its totient is φ = 15599784919680.

The previous prime is 31223434523341. The next prime is 31223434523497. The reversal of 31223434523404 is 40432543432213.

31223434523404 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28805782 + ... + 29870050.

Almost surely, 2^{31223434523404} is an apocalyptic number.

It is an amenable number.

31223434523404 is a deficient number, since it is larger than the sum of its proper divisors (23459354067796).

31223434523404 is a wasteful number, since it uses less digits than its factorization.

31223434523404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069873 (or 1069871 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 40.

Adding to 31223434523404 its reverse (40432543432213), we get a palindrome (71655977955617).

The spelling of 31223434523404 in words is "thirty-one trillion, two hundred twenty-three billion, four hundred thirty-four million, five hundred twenty-three thousand, four hundred four".