31313040024213 has 16 divisors (see below), whose sum is σ = 46583788051200. Its totient is φ = 20788015409280.

The previous prime is 31313040024209. The next prime is 31313040024241. The reversal of 31313040024213 is 31242004031313.

It is a happy number.

31313040024213 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 3 + 0 + 400 + 242 + 13 = 666.

It is not a de Polignac number, because 31313040024213 - 2² = 31313040024209 is a prime.

It is a super-4 number, since 4×31313040024213⁴ (a number of 55 digits) contains 4444 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313040024313) 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, 2426232508 + ... + 2426245413.

It is an arithmetic number, because the mean of its divisors is an integer number (2911486753200).

Almost surely, 2^{31313040024213} is an apocalyptic number.

It is an amenable number.

31313040024213 is a deficient number, since it is larger than the sum of its proper divisors (15270748026987).

31313040024213 is a wasteful number, since it uses less digits than its factorization.

31313040024213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4852478169 (or 4852478163 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31313040024213 its reverse (31242004031313), we get a palindrome (62555044055526).

The spelling of 31313040024213 in words is "thirty-one trillion, three hundred thirteen billion, forty million, twenty-four thousand, two hundred thirteen".