31213311112213 has 8 divisors (see below), whose sum is σ = 31246458499008. Its totient is φ = 31180164554784.

The previous prime is 31213311112211. The next prime is 31213311112223. The reversal of 31213311112213 is 31221111331213.

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 31213311112213 - 2¹ = 31213311112211 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 (31213311112211) 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, 101496306 + ... + 101803372.

It is an arithmetic number, because the mean of its divisors is an integer number (3905807312376).

Almost surely, 2^{31213311112213} is an apocalyptic number.

It is an amenable number.

31213311112213 is a deficient number, since it is larger than the sum of its proper divisors (33147386795).

31213311112213 is a wasteful number, since it uses less digits than its factorization.

31213311112213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414683.

The product of its digits is 648, while the sum is 25.

Adding to 31213311112213 its reverse (31221111331213), we get a palindrome (62434422443426).

The spelling of 31213311112213 in words is "thirty-one trillion, two hundred thirteen billion, three hundred eleven million, one hundred twelve thousand, two hundred thirteen".