40431130231 has 2 divisors, whose sum is σ = 40431130232. Its totient is φ = 40431130230.

The previous prime is 40431130151. The next prime is 40431130283. The reversal of 40431130231 is 13203113404.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40431130231 - 2¹⁵ = 40431097463 is a prime.

It is a super-2 number, since 2×40431130231² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40431130631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215565115 + 20215565116.

It is an arithmetic number, because the mean of its divisors is an integer number (20215565116).

Almost surely, 2^40431130231 is an apocalyptic number.

40431130231 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431130231 is an equidigital number, since it uses as much as digits as its factorization.

40431130231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 40431130231 its reverse (13203113404), we get a palindrome (53634243635).

The spelling of 40431130231 in words is "forty billion, four hundred thirty-one million, one hundred thirty thousand, two hundred thirty-one".