23223312121 has 4 divisors (see below), whose sum is σ = 23311613952. Its totient is φ = 23135010292.

The previous prime is 23223312109. The next prime is 23223312137. The reversal of 23223312121 is 12121332232.

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 23223312121 - 2¹⁷ = 23223181049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23223312092 and 23223312101.

It is not an unprimeable number, because it can be changed into a prime (23223318121) 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, 44150521 + ... + 44151046.

It is an arithmetic number, because the mean of its divisors is an integer number (5827903488).

Almost surely, 2^23223312121 is an apocalyptic number.

It is an amenable number.

23223312121 is a deficient number, since it is larger than the sum of its proper divisors (88301831).

23223312121 is an equidigital number, since it uses as much as digits as its factorization.

23223312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88301830.

The product of its digits is 864, while the sum is 22.

Adding to 23223312121 its reverse (12121332232), we get a palindrome (35344644353).

The spelling of 23223312121 in words is "twenty-three billion, two hundred twenty-three million, three hundred twelve thousand, one hundred twenty-one".