40312321313 has 8 divisors (see below), whose sum is σ = 43981710240. Its totient is φ = 36643704480.

The previous prime is 40312321271. The next prime is 40312321319. The reversal of 40312321313 is 31312321304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 40312321313 - 2⁸ = 40312321057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40312321319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81020 + ... + 295277.

It is an arithmetic number, because the mean of its divisors is an integer number (5497713780).

Almost surely, 2^40312321313 is an apocalyptic number.

It is an amenable number.

40312321313 is a deficient number, since it is larger than the sum of its proper divisors (3669388927).

40312321313 is a wasteful number, since it uses less digits than its factorization.

40312321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386047.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 40312321313 its reverse (31312321304), we get a palindrome (71624642617).

Subtracting from 40312321313 its reverse (31312321304), we obtain a palindrome (9000000009).

The spelling of 40312321313 in words is "forty billion, three hundred twelve million, three hundred twenty-one thousand, three hundred thirteen".