23001120121 has 4 divisors (see below), whose sum is σ = 26286994432. Its totient is φ = 19715245812.

The previous prime is 23001120113. The next prime is 23001120143. The reversal of 23001120121 is 12102110032.

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 a cyclic number.

It is not a de Polignac number, because 23001120121 - 2³ = 23001120113 is a prime.

It is a super-3 number, since 3×23001120121³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23001120151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1642937145 + ... + 1642937158.

It is an arithmetic number, because the mean of its divisors is an integer number (6571748608).

Almost surely, 2^23001120121 is an apocalyptic number.

It is an amenable number.

23001120121 is a deficient number, since it is larger than the sum of its proper divisors (3285874311).

23001120121 is an equidigital number, since it uses as much as digits as its factorization.

23001120121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3285874310.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 23001120121 its reverse (12102110032), we get a palindrome (35103230153).

The spelling of 23001120121 in words is "twenty-three billion, one million, one hundred twenty thousand, one hundred twenty-one".