31315533404 has 12 divisors (see below), whose sum is σ = 54836044200. Its totient is φ = 15648092208.

The previous prime is 31315533289. The next prime is 31315533409. The reversal of 31315533404 is 40433551313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315533409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2411339 + ... + 2424290.

It is an arithmetic number, because the mean of its divisors is an integer number (4569670350).

Almost surely, 2^31315533404 is an apocalyptic number.

It is an amenable number.

31315533404 is a deficient number, since it is larger than the sum of its proper divisors (23520510796).

31315533404 is a wasteful number, since it uses less digits than its factorization.

31315533404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4837252 (or 4837250 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 31315533404 in words is "thirty-one billion, three hundred fifteen million, five hundred thirty-three thousand, four hundred four".