31201333102013 has 16 divisors (see below), whose sum is σ = 31873100624640. Its totient is φ = 30536037840000.

The previous prime is 31201333101979. The next prime is 31201333102031. The reversal of 31201333102013 is 31020133310213.

It is not a de Polignac number, because 31201333102013 - 2²⁸ = 31201064666557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31201333102013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201333102613) 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, 292914263 + ... + 293020763.

It is an arithmetic number, because the mean of its divisors is an integer number (1992068789040).

Almost surely, 2^{31201333102013} is an apocalyptic number.

It is an amenable number.

31201333102013 is a deficient number, since it is larger than the sum of its proper divisors (671767522627).

31201333102013 is a wasteful number, since it uses less digits than its factorization.

31201333102013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136828.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31201333102013 its reverse (31020133310213), we get a palindrome (62221466412226).

The spelling of 31201333102013 in words is "thirty-one trillion, two hundred one billion, three hundred thirty-three million, one hundred two thousand, thirteen".