31013034213 has 32 divisors (see below), whose sum is σ = 47601388800. Its totient is φ = 17593399296.

The previous prime is 31013034211. The next prime is 31013034223. The reversal of 31013034213 is 31243031013.

It is not a de Polignac number, because 31013034213 - 2¹ = 31013034211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31013034213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013034211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1688443 + ... + 1706711.

It is an arithmetic number, because the mean of its divisors is an integer number (1487543400).

Almost surely, 2^31013034213 is an apocalyptic number.

It is an amenable number.

31013034213 is a deficient number, since it is larger than the sum of its proper divisors (16588354587).

31013034213 is a wasteful number, since it uses less digits than its factorization.

31013034213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18861.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31013034213 its reverse (31243031013), we get a palindrome (62256065226).

The spelling of 31013034213 in words is "thirty-one billion, thirteen million, thirty-four thousand, two hundred thirteen".