23261121 has 16 divisors (see below), whose sum is σ = 37112320. Its totient is φ = 14314320.

The previous prime is 23261113. The next prime is 23261131. The reversal of 23261121 is 12116232.

23261121 is a `hidden beast` number, since 2 + 32 + 611 + 21 = 666.

It is not a de Polignac number, because 23261121 - 2³ = 23261113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23261094 and 23261103.

It is not an unprimeable number, because it can be changed into a prime (23261131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32785 + ... + 33486.

It is an arithmetic number, because the mean of its divisors is an integer number (2319520).

Almost surely, 2^23261121 is an apocalyptic number.

It is an amenable number.

23261121 is a deficient number, since it is larger than the sum of its proper divisors (13851199).

23261121 is a wasteful number, since it uses less digits than its factorization.

23261121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66293 (or 66287 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 23261121 is about 4822.9784366095. The cubic root of 23261121 is about 285.4588729694.

Adding to 23261121 its reverse (12116232), we get a palindrome (35377353).

The spelling of 23261121 in words is "twenty-three million, two hundred sixty-one thousand, one hundred twenty-one".