23107121 has 4 divisors (see below), whose sum is σ = 23852544. Its totient is φ = 22361700.

The previous prime is 23107093. The next prime is 23107141. The reversal of 23107121 is 12170132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 23107121 - 2⁶ = 23107057 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23107121.

It is not an unprimeable number, because it can be changed into a prime (23107141) 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, 372665 + ... + 372726.

It is an arithmetic number, because the mean of its divisors is an integer number (5963136).

Almost surely, 2^23107121 is an apocalyptic number.

It is an amenable number.

23107121 is a deficient number, since it is larger than the sum of its proper divisors (745423).

23107121 is an equidigital number, since it uses as much as digits as its factorization.

23107121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 745422.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 23107121 is about 4806.9866860644. The cubic root of 23107121 is about 284.8275184939.

Adding to 23107121 its reverse (12170132), we get a palindrome (35277253).

The spelling of 23107121 in words is "twenty-three million, one hundred seven thousand, one hundred twenty-one".