31321323304 has 16 divisors (see below), whose sum is σ = 58936480020. Its totient is φ = 15604928640.

The previous prime is 31321323283. The next prime is 31321323307. The reversal of 31321323304 is 40332312313.

It can be written as a sum of positive squares in 2 ways, for example, as 28801484100 + 2519839204 = 169710^2 + 50198^2 .

It is not an unprimeable number, because it can be changed into a prime (31321323307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6964239 + ... + 6968734.

Almost surely, 2^31321323304 is an apocalyptic number.

It is an amenable number.

31321323304 is a deficient number, since it is larger than the sum of its proper divisors (27615156716).

31321323304 is a wasteful number, since it uses less digits than its factorization.

31321323304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13933260 (or 13933256 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31321323304 its reverse (40332312313), we get a palindrome (71653635617).

The spelling of 31321323304 in words is "thirty-one billion, three hundred twenty-one million, three hundred twenty-three thousand, three hundred four".