31310002112413 has 4 divisors (see below), whose sum is σ = 31342049198460. Its totient is φ = 31277955026368.

The previous prime is 31310002112381. The next prime is 31310002112429. The reversal of 31310002112413 is 31421120001313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26065292954724 + 5244709157689 = 5105418^2 + 2290133^2 .

It is a cyclic number.

It is not a de Polignac number, because 31310002112413 - 2⁵ = 31310002112381 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 (31310002112443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16023541558 + ... + 16023543511.

It is an arithmetic number, because the mean of its divisors is an integer number (7835512299615).

Almost surely, 2^{31310002112413} is an apocalyptic number.

It is an amenable number.

31310002112413 is a deficient number, since it is larger than the sum of its proper divisors (32047086047).

31310002112413 is an equidigital number, since it uses as much as digits as its factorization.

31310002112413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32047086046.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 31310002112413 its reverse (31421120001313), we get a palindrome (62731122113726).

The spelling of 31310002112413 in words is "thirty-one trillion, three hundred ten billion, two million, one hundred twelve thousand, four hundred thirteen".