31321545404 has 12 divisors (see below), whose sum is σ = 54829702200. Its totient is φ = 15655916208.

The previous prime is 31321545379. The next prime is 31321545407. The reversal of 31321545404 is 40454512313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31321545407) 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, 1199594 + ... + 1225425.

It is an arithmetic number, because the mean of its divisors is an integer number (4569141850).

Almost surely, 2^31321545404 is an apocalyptic number.

It is an amenable number.

31321545404 is a deficient number, since it is larger than the sum of its proper divisors (23508156796).

31321545404 is a wasteful number, since it uses less digits than its factorization.

31321545404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428252 (or 2428250 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 31321545404 in words is "thirty-one billion, three hundred twenty-one million, five hundred forty-five thousand, four hundred four".