40310031313 has 4 divisors (see below), whose sum is σ = 40458777088. Its totient is φ = 40161285540.

The previous prime is 40310031283. The next prime is 40310031317. The reversal of 40310031313 is 31313001304.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40310031313 - 2²⁵ = 40276476881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40310031317) 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, 74372481 + ... + 74373022.

It is an arithmetic number, because the mean of its divisors is an integer number (10114694272).

Almost surely, 2^40310031313 is an apocalyptic number.

It is an amenable number.

40310031313 is a deficient number, since it is larger than the sum of its proper divisors (148745775).

40310031313 is a wasteful number, since it uses less digits than its factorization.

40310031313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148745774.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 40310031313 its reverse (31313001304), we get a palindrome (71623032617).

The spelling of 40310031313 in words is "forty billion, three hundred ten million, thirty-one thousand, three hundred thirteen".