23111873 has 6 divisors (see below), whose sum is σ = 23438214. Its totient is φ = 22790016.

The previous prime is 23111867. The next prime is 23111887. The reversal of 23111873 is 37811132.

It can be written as a sum of positive squares in 3 ways, for example, as 339889 + 22771984 = 583^2 + 4772^2 .

It is not a de Polignac number, because 23111873 - 2⁸ = 23111617 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23111773) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3161 + ... + 7497.

It is an arithmetic number, because the mean of its divisors is an integer number (3906369).

Almost surely, 2^23111873 is an apocalyptic number.

It is an amenable number.

23111873 is a deficient number, since it is larger than the sum of its proper divisors (326341).

23111873 is an frugal number, since it uses more digits than its factorization.

23111873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4483 (or 4410 counting only the distinct ones).

The product of its digits is 1008, while the sum is 26.

The square root of 23111873 is about 4807.4809411999. The cubic root of 23111873 is about 284.8470421665.

The spelling of 23111873 in words is "twenty-three million, one hundred eleven thousand, eight hundred seventy-three".