40402234331 has 2 divisors, whose sum is σ = 40402234332. Its totient is φ = 40402234330.

The previous prime is 40402234307. The next prime is 40402234343. The reversal of 40402234331 is 13343220404.

40402234331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40402234331 is a prime.

It is a super-2 number, since 2×40402234331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 40402234331.

It is not a weakly prime, because it can be changed into another prime (40402234531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20201117165 + 20201117166.

It is an arithmetic number, because the mean of its divisors is an integer number (20201117166).

Almost surely, 2^40402234331 is an apocalyptic number.

40402234331 is a deficient number, since it is larger than the sum of its proper divisors (1).

40402234331 is an equidigital number, since it uses as much as digits as its factorization.

40402234331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 40402234331 its reverse (13343220404), we get a palindrome (53745454735).

The spelling of 40402234331 in words is "forty billion, four hundred two million, two hundred thirty-four thousand, three hundred thirty-one".