31311222211313 has 8 divisors (see below), whose sum is σ = 34306857209280. Its totient is φ = 28340447255280.

The previous prime is 31311222211279. The next prime is 31311222211319.

31311222211313 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31311222211313 - 2²⁰ = 31311221162737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311222211319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6215007845 + ... + 6215012882.

It is an arithmetic number, because the mean of its divisors is an integer number (4288357151160).

Almost surely, 2^{31311222211313} is an apocalyptic number.

It is an amenable number.

31311222211313 is a deficient number, since it is larger than the sum of its proper divisors (2995634997967).

31311222211313 is a wasteful number, since it uses less digits than its factorization.

31311222211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12430020967.

The product of its digits is 1296, while the sum is 26.

It can be divided in two parts, 3131122 and 2211313, that added together give a palindrome (5342435).

The spelling of 31311222211313 in words is "thirty-one trillion, three hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, three hundred thirteen".