23100121 has 4 divisors (see below), whose sum is σ = 25200144. Its totient is φ = 21000100.

The previous prime is 23100109. The next prime is 23100149. The reversal of 23100121 is 12100132.

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 not a de Polignac number, because 23100121 - 2⁵ = 23100089 is a prime.

It is a super-3 number, since 3×23100121³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23100098 and 23100107.

It is not an unprimeable number, because it can be changed into a prime (23100101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049995 + ... + 1050016.

It is an arithmetic number, because the mean of its divisors is an integer number (6300036).

Almost surely, 2^23100121 is an apocalyptic number.

It is an amenable number.

23100121 is a deficient number, since it is larger than the sum of its proper divisors (2100023).

23100121 is a wasteful number, since it uses less digits than its factorization.

23100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100022.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 23100121 is about 4806.2585240497. The cubic root of 23100121 is about 284.7987539989.

Adding to 23100121 its reverse (12100132), we get a palindrome (35200253).

The spelling of 23100121 in words is "twenty-three million, one hundred thousand, one hundred twenty-one".