99993431023 has 8 divisors (see below), whose sum is σ = 103645147392. Its totient is φ = 96405222936.

The previous prime is 99993430997. The next prime is 99993431053. The reversal of 99993431023 is 32013439999.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99993431023 - 2⁵ = 99993430991 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 (99993431053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15873865 + ... + 15880162.

It is an arithmetic number, because the mean of its divisors is an integer number (12955643424).

Almost surely, 2^99993431023 is an apocalyptic number.

99993431023 is a deficient number, since it is larger than the sum of its proper divisors (3651716369).

99993431023 is a wasteful number, since it uses less digits than its factorization.

99993431023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31754141.

The product of its (nonzero) digits is 1417176, while the sum is 52.

The spelling of 99993431023 in words is "ninety-nine billion, nine hundred ninety-three million, four hundred thirty-one thousand, twenty-three".