13312212507731 has 16 divisors (see below), whose sum is σ = 13490151753024. Its totient is φ = 13135480802304.

The previous prime is 13312212507599. The next prime is 13312212507761. The reversal of 13312212507731 is 13770521221331.

It is a cyclic number.

It is not a de Polignac number, because 13312212507731 - 2¹⁰ = 13312212506707 is a prime.

It is a super-2 number, since 2×13312212507731² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312212507761) 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, 101208650 + ... + 101340096.

It is an arithmetic number, because the mean of its divisors is an integer number (843134484564).

Almost surely, 2^{13312212507731} is an apocalyptic number.

13312212507731 is a deficient number, since it is larger than the sum of its proper divisors (177939245293).

13312212507731 is a wasteful number, since it uses less digits than its factorization.

13312212507731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136030.

The product of its (nonzero) digits is 52920, while the sum is 38.

The spelling of 13312212507731 in words is "thirteen trillion, three hundred twelve billion, two hundred twelve million, five hundred seven thousand, seven hundred thirty-one".