101908923 has 4 divisors (see below), whose sum is σ = 135878568. Its totient is φ = 67939280.

The previous prime is 101908909. The next prime is 101908967. The reversal of 101908923 is 329809101.

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-101908923 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101908123) 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, 16984818 + ... + 16984823.

It is an arithmetic number, because the mean of its divisors is an integer number (33969642).

Almost surely, 2^101908923 is an apocalyptic number.

101908923 is a deficient number, since it is larger than the sum of its proper divisors (33969645).

101908923 is an equidigital number, since it uses as much as digits as its factorization.

101908923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33969644.

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 101908923 is about 10094.9949479928. The cubic root of 101908923 is about 467.0937655141.

It can be divided in two parts, 101908 and 923, that added together give a triangular number (102831 = T₄₅₃).

The spelling of 101908923 in words is "one hundred one million, nine hundred eight thousand, nine hundred twenty-three".