30131332321 has 64 divisors (see below), whose sum is σ = 35121835008. Its totient is φ = 25685434368.

The previous prime is 30131332313. The next prime is 30131332453. The reversal of 30131332321 is 12323313103.

It is not a de Polignac number, because 30131332321 - 2³ = 30131332313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30131332292 and 30131332301.

It is not an unprimeable number, because it can be changed into a prime (30131332921) 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 63 ways as a sum of consecutive naturals, for example, 108777235 + ... + 108777511.

It is an arithmetic number, because the mean of its divisors is an integer number (548778672).

Almost surely, 2^30131332321 is an apocalyptic number.

It is an amenable number.

30131332321 is a deficient number, since it is larger than the sum of its proper divisors (4990502687).

30131332321 is a wasteful number, since it uses less digits than its factorization.

30131332321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 530.

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

Adding to 30131332321 its reverse (12323313103), we get a palindrome (42454645424).

The spelling of 30131332321 in words is "thirty billion, one hundred thirty-one million, three hundred thirty-two thousand, three hundred twenty-one".