31330321033 has 12 divisors (see below), whose sum is σ = 35934744384. Its totient is φ = 27243755000.

The previous prime is 31330320991. The next prime is 31330321051. The reversal of 31330321033 is 33012303313.

It is not a de Polignac number, because 31330321033 - 2⁹ = 31330320521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31330320995 and 31330321013.

It is not an unprimeable number, because it can be changed into a prime (31330321433) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5626093 + ... + 5631658.

It is an arithmetic number, because the mean of its divisors is an integer number (2994562032).

Almost surely, 2^31330321033 is an apocalyptic number.

It is an amenable number.

31330321033 is a deficient number, since it is larger than the sum of its proper divisors (4604423351).

31330321033 is a wasteful number, since it uses less digits than its factorization.

31330321033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257796 (or 11257785 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 31330321033 its reverse (33012303313), we get a palindrome (64342624346).

The spelling of 31330321033 in words is "thirty-one billion, three hundred thirty million, three hundred twenty-one thousand, thirty-three".