31580045321 has 16 divisors (see below), whose sum is σ = 35037489600. Its totient is φ = 28220942400.

The previous prime is 31580045303. The next prime is 31580045333. The reversal of 31580045321 is 12354008513.

It is not a de Polignac number, because 31580045321 - 2¹⁰ = 31580044297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31580045351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1132970 + ... + 1160508.

It is an arithmetic number, because the mean of its divisors is an integer number (2189843100).

Almost surely, 2^31580045321 is an apocalyptic number.

It is an amenable number.

31580045321 is a deficient number, since it is larger than the sum of its proper divisors (3457444279).

31580045321 is a wasteful number, since it uses less digits than its factorization.

31580045321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29320.

The product of its (nonzero) digits is 14400, while the sum is 32.

The spelling of 31580045321 in words is "thirty-one billion, five hundred eighty million, forty-five thousand, three hundred twenty-one".