23120121 has 8 divisors (see below), whose sum is σ = 30852064. Its totient is φ = 15400800.

The previous prime is 23120039. The next prime is 23120171. The reversal of 23120121 is 12102132.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23120121 - 2¹⁰ = 23119097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23120097 and 23120106.

It is not an unprimeable number, because it can be changed into a prime (23120171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2646 + ... + 7296.

It is an arithmetic number, because the mean of its divisors is an integer number (3856508).

Almost surely, 2^23120121 is an apocalyptic number.

It is an amenable number.

23120121 is a deficient number, since it is larger than the sum of its proper divisors (7731943).

23120121 is a wasteful number, since it uses less digits than its factorization.

23120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6311.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 23120121 is about 4808.3386943933. The cubic root of 23120121 is about 284.8809228617.

Adding to 23120121 its reverse (12102132), we get a palindrome (35222253).

The spelling of 23120121 in words is "twenty-three million, one hundred twenty thousand, one hundred twenty-one".