40431532241 has 2 divisors, whose sum is σ = 40431532242. Its totient is φ = 40431532240.

The previous prime is 40431532223. The next prime is 40431532303. The reversal of 40431532241 is 14223513404.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28696360000 + 11735172241 = 169400^2 + 108329^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40431532241 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40431532441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215766120 + 20215766121.

It is an arithmetic number, because the mean of its divisors is an integer number (20215766121).

Almost surely, 2^40431532241 is an apocalyptic number.

It is an amenable number.

40431532241 is a deficient number, since it is larger than the sum of its proper divisors (1).

40431532241 is an equidigital number, since it uses as much as digits as its factorization.

40431532241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 40431532241 in words is "forty billion, four hundred thirty-one million, five hundred thirty-two thousand, two hundred forty-one".