100453123 has 4 divisors (see below), whose sum is σ = 100475280. Its totient is φ = 100430968.

The previous prime is 100453099. The next prime is 100453159. The reversal of 100453123 is 321354001.

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 100453123 - 2¹⁷ = 100322051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100453123.

It is not an unprimeable number, because it can be changed into a prime (100453193) 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, 1540 + ... + 14257.

It is an arithmetic number, because the mean of its divisors is an integer number (25118820).

Almost surely, 2^100453123 is an apocalyptic number.

100453123 is a deficient number, since it is larger than the sum of its proper divisors (22157).

100453123 is an equidigital number, since it uses as much as digits as its factorization.

100453123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22156.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 100453123 is about 10022.6305429263. The cubic root of 100453123 is about 464.8588973344.

It can be divided in two parts, 100453 and 123, that added together give a triangular number (100576 = T₄₄₈).

The spelling of 100453123 in words is "one hundred million, four hundred fifty-three thousand, one hundred twenty-three".