23130121 has 16 divisors (see below), whose sum is σ = 27025920. Its totient is φ = 19388160.

The previous prime is 23130113. The next prime is 23130131. The reversal of 23130121 is 12103132.

It is a cyclic number.

It is not a de Polignac number, because 23130121 - 2³ = 23130113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23130131) 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, 85216 + ... + 85486.

It is an arithmetic number, because the mean of its divisors is an integer number (1689120).

Almost surely, 2^23130121 is an apocalyptic number.

It is an amenable number.

23130121 is a deficient number, since it is larger than the sum of its proper divisors (3895799).

23130121 is a wasteful number, since it uses less digits than its factorization.

23130121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 23130121 is about 4809.3784421690. The cubic root of 23130121 is about 284.9219895240.

Adding to 23130121 its reverse (12103132), we get a palindrome (35233253).

The spelling of 23130121 in words is "twenty-three million, one hundred thirty thousand, one hundred twenty-one".