13213113031 has 16 divisors (see below), whose sum is σ = 14378446080. Its totient is φ = 12091368960.

The previous prime is 13213113029. The next prime is 13213113049. The reversal of 13213113031 is 13031131231.

It is a cyclic number.

It is not a de Polignac number, because 13213113031 - 2¹ = 13213113029 is a prime.

It is a super-2 number, since 2×13213113031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13213113061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1013130 + ... + 1026088.

It is an arithmetic number, because the mean of its divisors is an integer number (898652880).

Almost surely, 2^13213113031 is an apocalyptic number.

13213113031 is a deficient number, since it is larger than the sum of its proper divisors (1165333049).

13213113031 is a wasteful number, since it uses less digits than its factorization.

13213113031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14634.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 13213113031 its reverse (13031131231), we get a palindrome (26244244262).

The spelling of 13213113031 in words is "thirteen billion, two hundred thirteen million, one hundred thirteen thousand, thirty-one".