108431923 has 4 divisors (see below), whose sum is σ = 108575920. Its totient is φ = 108287928.

The previous prime is 108431887. The next prime is 108431963. The reversal of 108431923 is 329134801.

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-108431923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (108431963) 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, 70863 + ... + 72376.

It is an arithmetic number, because the mean of its divisors is an integer number (27143980).

Almost surely, 2^108431923 is an apocalyptic number.

108431923 is a deficient number, since it is larger than the sum of its proper divisors (143997).

108431923 is an equidigital number, since it uses as much as digits as its factorization.

108431923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143996.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 108431923 is about 10413.0650146823. The cubic root of 108431923 is about 476.8543183987.

The spelling of 108431923 in words is "one hundred eight million, four hundred thirty-one thousand, nine hundred twenty-three".