13022012331 has 32 divisors (see below), whose sum is σ = 19613419520. Its totient is φ = 8537091552.

The previous prime is 13022012329. The next prime is 13022012347. The reversal of 13022012331 is 13321022031.

13022012331 is a `hidden beast` number, since 1 + 302 + 20 + 12 + 331 = 666.

It is not a de Polignac number, because 13022012331 - 2¹ = 13022012329 is a prime.

It is a super-2 number, since 2×13022012331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13022012351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1103046 + ... + 1114788.

It is an arithmetic number, because the mean of its divisors is an integer number (612919360).

Almost surely, 2^13022012331 is an apocalyptic number.

13022012331 is a deficient number, since it is larger than the sum of its proper divisors (6591407189).

13022012331 is a wasteful number, since it uses less digits than its factorization.

13022012331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12432 (or 12426 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13022012331 its reverse (13321022031), we get a palindrome (26343034362).

The spelling of 13022012331 in words is "thirteen billion, twenty-two million, twelve thousand, three hundred thirty-one".