40002013331 has 24 divisors (see below), whose sum is σ = 46714256064. Its totient is φ = 34154144640.

The previous prime is 40002013309. The next prime is 40002013351. The reversal of 40002013331 is 13331020004.

It is a happy number.

It is not a de Polignac number, because 40002013331 - 2⁶ = 40002013267 is a prime.

It is a super-2 number, since 2×40002013331² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40002013351) 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, 17535911 + ... + 17538191.

It is an arithmetic number, because the mean of its divisors is an integer number (1946427336).

Almost surely, 2^40002013331 is an apocalyptic number.

40002013331 is a deficient number, since it is larger than the sum of its proper divisors (6712242733).

40002013331 is a wasteful number, since it uses less digits than its factorization.

40002013331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3531 (or 3524 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 40002013331 its reverse (13331020004), we get a palindrome (53333033335).

The spelling of 40002013331 in words is "forty billion, two million, thirteen thousand, three hundred thirty-one".