40431232327 has 4 divisors (see below), whose sum is σ = 40471786216. Its totient is φ = 40390678440.

The previous prime is 40431232321. The next prime is 40431232337. The reversal of 40431232327 is 72323213404.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40431232327 - 2¹⁵ = 40431199559 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 (40431232321) 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 in 3 ways as a sum of consecutive naturals, for example, 20275449 + ... + 20277442.

It is an arithmetic number, because the mean of its divisors is an integer number (10117946554).

Almost surely, 2^40431232327 is an apocalyptic number.

40431232327 is a deficient number, since it is larger than the sum of its proper divisors (40553889).

40431232327 is an equidigital number, since it uses as much as digits as its factorization.

40431232327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40553888.

The product of its (nonzero) digits is 24192, while the sum is 31.

The spelling of 40431232327 in words is "forty billion, four hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty-seven".