31343013515133 has 12 divisors (see below), whose sum is σ = 45280545138400. Its totient is φ = 20891971546056.

The previous prime is 31343013515083. The next prime is 31343013515161. The reversal of 31343013515133 is 33151531034313.

31343013515133 is a `hidden beast` number, since 3 + 1 + 3 + 4 + 3 + 0 + 1 + 3 + 515 + 133 = 666.

It is not a de Polignac number, because 31343013515133 - 2⁸ = 31343013514877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31343013519133) 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, 280840891 + ... + 280952472.

Almost surely, 2^{31343013515133} is an apocalyptic number.

It is an amenable number.

31343013515133 is a deficient number, since it is larger than the sum of its proper divisors (13937531623267).

31343013515133 is a wasteful number, since it uses less digits than its factorization.

31343013515133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561799568 (or 561799565 counting only the distinct ones).

The product of its (nonzero) digits is 72900, while the sum is 36.

Adding to 31343013515133 its reverse (33151531034313), we get a palindrome (64494544549446).

The spelling of 31343013515133 in words is "thirty-one trillion, three hundred forty-three billion, thirteen million, five hundred fifteen thousand, one hundred thirty-three".