31023012100213 has 16 divisors (see below), whose sum is σ = 35570444083200. Its totient is φ = 26504480948400.

The previous prime is 31023012100211. The next prime is 31023012100259. The reversal of 31023012100213 is 31200121032013.

It is not a de Polignac number, because 31023012100213 - 2¹ = 31023012100211 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 (31023012100211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50924188 + ... + 51529786.

It is an arithmetic number, because the mean of its divisors is an integer number (2223152755200).

Almost surely, 2^{31023012100213} is an apocalyptic number.

It is an amenable number.

31023012100213 is a deficient number, since it is larger than the sum of its proper divisors (4547431982987).

31023012100213 is a wasteful number, since it uses less digits than its factorization.

31023012100213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629448.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31023012100213 its reverse (31200121032013), we get a palindrome (62223133132226).

The spelling of 31023012100213 in words is "thirty-one trillion, twenty-three billion, twelve million, one hundred thousand, two hundred thirteen".