23144121 has 72 divisors (see below), whose sum is σ = 45811584. Its totient is φ = 11067840.

The previous prime is 23144111. The next prime is 23144137. The reversal of 23144121 is 12144132.

It is not a de Polignac number, because 23144121 - 2¹⁰ = 23143097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23144094 and 23144103.

It is not an unprimeable number, because it can be changed into a prime (23144101) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 62880 + ... + 63246.

It is an arithmetic number, because the mean of its divisors is an integer number (636272).

Almost surely, 2^23144121 is an apocalyptic number.

23144121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

23144121 is a deficient number, since it is larger than the sum of its proper divisors (22667463).

23144121 is a wasteful number, since it uses less digits than its factorization.

23144121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411 (or 401 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 23144121 is about 4810.8337115307. The cubic root of 23144121 is about 284.9794629707.

Adding to 23144121 its reverse (12144132), we get a palindrome (35288253).

The spelling of 23144121 in words is "twenty-three million, one hundred forty-four thousand, one hundred twenty-one".