40331313313 has 2 divisors, whose sum is σ = 40331313314. Its totient is φ = 40331313312.

The previous prime is 40331313299. The next prime is 40331313353. The reversal of 40331313313 is 31331313304.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32830540864 + 7500772449 = 181192^2 + 86607^2 .

It is a cyclic number.

It is not a de Polignac number, because 40331313313 - 2²⁵ = 40297758881 is a prime.

It is a super-2 number, since 2×40331313313² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40331313353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20165656656 + 20165656657.

It is an arithmetic number, because the mean of its divisors is an integer number (20165656657).

Almost surely, 2^40331313313 is an apocalyptic number.

It is an amenable number.

40331313313 is a deficient number, since it is larger than the sum of its proper divisors (1).

40331313313 is an equidigital number, since it uses as much as digits as its factorization.

40331313313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 40331313313 its reverse (31331313304), we get a palindrome (71662626617).

Subtracting from 40331313313 its reverse (31331313304), we obtain a palindrome (9000000009).

The spelling of 40331313313 in words is "forty billion, three hundred thirty-one million, three hundred thirteen thousand, three hundred thirteen".