40311343213 has 24 divisors (see below), whose sum is σ = 42518346944. Its totient is φ = 38202658560.

The previous prime is 40311343201. The next prime is 40311343253. The reversal of 40311343213 is 31234311304.

40311343213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40311343213 - 2⁵ = 40311343181 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 (40311343253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8219320 + ... + 8224222.

Almost surely, 2^40311343213 is an apocalyptic number.

It is an amenable number.

40311343213 is a deficient number, since it is larger than the sum of its proper divisors (2207003731).

40311343213 is an equidigital number, since it uses as much as digits as its factorization.

40311343213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5125 (or 5084 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 40311343213 its reverse (31234311304), we get a palindrome (71545654517).

The spelling of 40311343213 in words is "forty billion, three hundred eleven million, three hundred forty-three thousand, two hundred thirteen".