100123379 has 4 divisors (see below), whose sum is σ = 100443576. Its totient is φ = 99803184.

The previous prime is 100123363. The next prime is 100123403. The reversal of 100123379 is 973321001.

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

It is a cyclic number.

It is not a de Polignac number, because 100123379 - 2⁴ = 100123363 is a prime.

It is a Duffinian number.

It is the 56-th primeval number, because it sets a new record (12515) in the number of distinct primes that is it possible to write using its digits.

It is not an unprimeable number, because it can be changed into a prime (100123339) 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, 159629 + ... + 160254.

It is an arithmetic number, because the mean of its divisors is an integer number (25110894).

Almost surely, 2^100123379 is an apocalyptic number.

100123379 is a deficient number, since it is larger than the sum of its proper divisors (320197).

100123379 is an equidigital number, since it uses as much as digits as its factorization.

100123379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320196.

The product of its (nonzero) digits is 1134, while the sum is 26.

The square root of 100123379 is about 10006.1670483757. The cubic root of 100123379 is about 464.3496964379.

The spelling of 100123379 in words is "one hundred million, one hundred twenty-three thousand, three hundred seventy-nine".