23201322031021 has 4 divisors (see below), whose sum is σ = 24422444243200. Its totient is φ = 21980199818844.

The previous prime is 23201322031003. The next prime is 23201322031049. The reversal of 23201322031021 is 12013022310232.

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 23201322031021 - 2⁵ = 23201322030989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23201322030983 and 23201322031001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23201322031061) 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, 610561106061 + ... + 610561106098.

It is an arithmetic number, because the mean of its divisors is an integer number (6105611060800).

Almost surely, 2^{23201322031021} is an apocalyptic number.

It is an amenable number.

23201322031021 is a deficient number, since it is larger than the sum of its proper divisors (1221122212179).

23201322031021 is a wasteful number, since it uses less digits than its factorization.

23201322031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1221122212178.

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

Adding to 23201322031021 its reverse (12013022310232), we get a palindrome (35214344341253).

The spelling of 23201322031021 in words is "twenty-three trillion, two hundred one billion, three hundred twenty-two million, thirty-one thousand, twenty-one".