31221133112213 has 8 divisors (see below), whose sum is σ = 34069606260096. Its totient is φ = 28374358017600.

The previous prime is 31221133112201. The next prime is 31221133112297.

31221133112213 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 a de Polignac number, because none of the positive numbers 2^k-31221133112213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31221133102213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 424474868 + ... + 424548413.

It is an arithmetic number, because the mean of its divisors is an integer number (4258700782512).

Almost surely, 2^{31221133112213} is an apocalyptic number.

It is an amenable number.

31221133112213 is a deficient number, since it is larger than the sum of its proper divisors (2848473147883).

31221133112213 is a wasteful number, since it uses less digits than its factorization.

31221133112213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 849026635.

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

It can be divided in two parts, 3122113 and 3112213, that added together give a palindrome (6234326).

The spelling of 31221133112213 in words is "thirty-one trillion, two hundred twenty-one billion, one hundred thirty-three million, one hundred twelve thousand, two hundred thirteen".