23431532398 has 4 divisors (see below), whose sum is σ = 35147298600. Its totient is φ = 11715766198.

The previous prime is 23431532389. The next prime is 23431532401. The reversal of 23431532398 is 89323513432.

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

It is a congruent number.

It is an unprimeable number.

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, 5857883098 + ... + 5857883101.

It is an arithmetic number, because the mean of its divisors is an integer number (8786824650).

Almost surely, 2^23431532398 is an apocalyptic number.

23431532398 is a deficient number, since it is larger than the sum of its proper divisors (11715766202).

23431532398 is a wasteful number, since it uses less digits than its factorization.

23431532398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11715766201.

The product of its digits is 466560, while the sum is 43.

The spelling of 23431532398 in words is "twenty-three billion, four hundred thirty-one million, five hundred thirty-two thousand, three hundred ninety-eight".