23103911 has 4 divisors (see below), whose sum is σ = 23177112. Its totient is φ = 23030712.

The previous prime is 23103907. The next prime is 23103953. The reversal of 23103911 is 11930132.

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 23103911 - 2² = 23103907 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 (23103961) 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, 36125 + ... + 36758.

It is an arithmetic number, because the mean of its divisors is an integer number (5794278).

Almost surely, 2^23103911 is an apocalyptic number.

23103911 is a deficient number, since it is larger than the sum of its proper divisors (73201).

23103911 is an equidigital number, since it uses as much as digits as its factorization.

23103911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73200.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 23103911 is about 4806.6527854631. The cubic root of 23103911 is about 284.8143286396.

The spelling of 23103911 in words is "twenty-three million, one hundred three thousand, nine hundred eleven".