23122412021 has 4 divisors (see below), whose sum is σ = 23197729632. Its totient is φ = 23047094412.

The previous prime is 23122411997. The next prime is 23122412041. The reversal of 23122412021 is 12021422132.

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 23122412021 - 2³⁰ = 22048670197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23122411984 and 23122412002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122412041) 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, 37658345 + ... + 37658958.

It is an arithmetic number, because the mean of its divisors is an integer number (5799432408).

Almost surely, 2^23122412021 is an apocalyptic number.

It is an amenable number.

23122412021 is a deficient number, since it is larger than the sum of its proper divisors (75317611).

23122412021 is an equidigital number, since it uses as much as digits as its factorization.

23122412021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75317610.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 23122412021 its reverse (12021422132), we get a palindrome (35143834153).

The spelling of 23122412021 in words is "twenty-three billion, one hundred twenty-two million, four hundred twelve thousand, twenty-one".