23112001121 has 4 divisors (see below), whose sum is σ = 25213092144. Its totient is φ = 21010910100.

The previous prime is 23112001097. The next prime is 23112001163. The reversal of 23112001121 is 12110021132.

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 23112001121 - 2⁶ = 23112001057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23112001096 and 23112001105.

It is not an unprimeable number, because it can be changed into a prime (23112001181) 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, 1050545495 + ... + 1050545516.

It is an arithmetic number, because the mean of its divisors is an integer number (6303273036).

Almost surely, 2^23112001121 is an apocalyptic number.

It is an amenable number.

23112001121 is a deficient number, since it is larger than the sum of its proper divisors (2101091023).

23112001121 is a wasteful number, since it uses less digits than its factorization.

23112001121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2101091022.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 23112001121 its reverse (12110021132), we get a palindrome (35222022253).

The spelling of 23112001121 in words is "twenty-three billion, one hundred twelve million, one thousand, one hundred twenty-one".