13361816331 has 12 divisors (see below), whose sum is σ = 19312507552. Its totient is φ = 8902290096.

The previous prime is 13361816257. The next prime is 13361816341.

It is a happy number.

13361816331 is a `hidden beast` number, since 1 + 3 + 3 + 6 + 18 + 1 + 633 + 1 = 666.

13361816331 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 13361816331 - 2⁷ = 13361816203 is a prime.

It is a super-2 number, since 2×13361816331² (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 (13361816341) 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, 450451 + ... + 479196.

Almost surely, 2^13361816331 is an apocalyptic number.

13361816331 is a deficient number, since it is larger than the sum of its proper divisors (5950691221).

13361816331 is a wasteful number, since it uses less digits than its factorization.

13361816331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931250 (or 931247 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The spelling of 13361816331 in words is "thirteen billion, three hundred sixty-one million, eight hundred sixteen thousand, three hundred thirty-one".