23031899 has 6 divisors (see below), whose sum is σ = 25143084. Its totient is φ = 20923620.

The previous prime is 23031893. The next prime is 23031907. The reversal of 23031899 is 99813032.

It is not a de Polignac number, because 23031899 - 2²⁴ = 6254683 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23031893) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15194 + ... + 16640.

It is an arithmetic number, because the mean of its divisors is an integer number (4190514).

Almost surely, 2^23031899 is an apocalyptic number.

23031899 is a deficient number, since it is larger than the sum of its proper divisors (2111185).

23031899 is an frugal number, since it uses more digits than its factorization.

23031899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2905 (or 1458 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 23031899 is about 4799.1560716443. The cubic root of 23031899 is about 284.5181104583.

The spelling of 23031899 in words is "twenty-three million, thirty-one thousand, eight hundred ninety-nine".