23031322121 has 8 divisors (see below), whose sum is σ = 23191907904. Its totient is φ = 22871290000.

The previous prime is 23031322087. The next prime is 23031322129. The reversal of 23031322121 is 12122313032.

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

It is a cyclic number.

It is not a de Polignac number, because 23031322121 - 2⁶ = 23031322057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23031322093 and 23031322102.

It is not an unprimeable number, because it can be changed into a prime (23031322129) 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, 54755 + ... + 221496.

It is an arithmetic number, because the mean of its divisors is an integer number (2898988488).

Almost surely, 2^23031322121 is an apocalyptic number.

It is an amenable number.

23031322121 is a deficient number, since it is larger than the sum of its proper divisors (160585783).

23031322121 is a wasteful number, since it uses less digits than its factorization.

23031322121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276831.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23031322121 its reverse (12122313032), we get a palindrome (35153635153).

The spelling of 23031322121 in words is "twenty-three billion, thirty-one million, three hundred twenty-two thousand, one hundred twenty-one".