31604117423 has 4 divisors (see below), whose sum is σ = 31613782608. Its totient is φ = 31594452240.

The previous prime is 31604117411. The next prime is 31604117431. The reversal of 31604117423 is 32471140613.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31604117423 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31604117423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31604117483) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4827686 + ... + 4834227.

It is an arithmetic number, because the mean of its divisors is an integer number (7903445652).

Almost surely, 2^31604117423 is an apocalyptic number.

31604117423 is a deficient number, since it is larger than the sum of its proper divisors (9665185).

31604117423 is an equidigital number, since it uses as much as digits as its factorization.

31604117423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9665184.

The product of its (nonzero) digits is 12096, while the sum is 32.

The spelling of 31604117423 in words is "thirty-one billion, six hundred four million, one hundred seventeen thousand, four hundred twenty-three".