31222311322213 has 16 divisors (see below), whose sum is σ = 34210587168000. Its totient is φ = 28259067316480.

The previous prime is 31222311322193. The next prime is 31222311322243.

31222311322213 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31222311322213 - 2³³ = 31213721387621 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31222311322243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10944945 + ... + 13499497.

It is an arithmetic number, because the mean of its divisors is an integer number (2138161698000).

Almost surely, 2^{31222311322213} is an apocalyptic number.

It is an amenable number.

31222311322213 is a deficient number, since it is larger than the sum of its proper divisors (2988275845787).

31222311322213 is a wasteful number, since it uses less digits than its factorization.

31222311322213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2559452.

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

It can be divided in two parts, 3122231 and 1322213, that added together give a palindrome (4444444).

The spelling of 31222311322213 in words is "thirty-one trillion, two hundred twenty-two billion, three hundred eleven million, three hundred twenty-two thousand, two hundred thirteen".