23101903 has 4 divisors (see below), whose sum is σ = 25202088. Its totient is φ = 21001720.

The previous prime is 23101889. The next prime is 23101921. The reversal of 23101903 is 30910132.

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 23101903 - 2¹³ = 23093711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101933) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1050076 + ... + 1050097.

It is an arithmetic number, because the mean of its divisors is an integer number (6300522).

Almost surely, 2^23101903 is an apocalyptic number.

23101903 is a deficient number, since it is larger than the sum of its proper divisors (2100185).

23101903 is a wasteful number, since it uses less digits than its factorization.

23101903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100184.

The product of its (nonzero) digits is 162, while the sum is 19.

The square root of 23101903 is about 4806.4439037609. The cubic root of 23101903 is about 284.8060771688.

It can be divided in two parts, 23 and 101903, that added together give a triangular number (101926 = T₄₅₁).

The spelling of 23101903 in words is "twenty-three million, one hundred one thousand, nine hundred three".