31122233222113 has 4 divisors (see below), whose sum is σ = 33951527151408. Its totient is φ = 28292939292820.

The previous prime is 31122233222027. The next prime is 31122233222137.

31122233222113 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31122233222113 - 2²⁹ = 31121696351201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31122233222183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414646964631 + ... + 1414646964652.

It is an arithmetic number, because the mean of its divisors is an integer number (8487881787852).

Almost surely, 2^{31122233222113} is an apocalyptic number.

It is an amenable number.

31122233222113 is a deficient number, since it is larger than the sum of its proper divisors (2829293929295).

31122233222113 is a wasteful number, since it uses less digits than its factorization.

31122233222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2829293929294.

The product of its digits is 5184, while the sum is 28.

It can be divided in two parts, 3112223 and 3222113, that added together give a palindrome (6334336).

The spelling of 31122233222113 in words is "thirty-one trillion, one hundred twenty-two billion, two hundred thirty-three million, two hundred twenty-two thousand, one hundred thirteen".