31321032000331 has 4 divisors (see below), whose sum is σ = 31342980867912. Its totient is φ = 31299083132752.

The previous prime is 31321032000311. The next prime is 31321032000439. The reversal of 31321032000331 is 13300023012313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31321032000331 - 2²⁹ = 31320495129419 is a prime.

It is a super-2 number, since 2×31321032000331² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31321032000311) 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, 10974431650 + ... + 10974434503.

It is an arithmetic number, because the mean of its divisors is an integer number (7835745216978).

Almost surely, 2^{31321032000331} is an apocalyptic number.

31321032000331 is a deficient number, since it is larger than the sum of its proper divisors (21948867581).

31321032000331 is a wasteful number, since it uses less digits than its factorization.

31321032000331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21948867580.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31321032000331 its reverse (13300023012313), we get a palindrome (44621055012644).

The spelling of 31321032000331 in words is "thirty-one trillion, three hundred twenty-one billion, thirty-two million, three hundred thirty-one", and thus it is an aban number.