23221320232311 has 80 divisors (see below), whose sum is σ = 37367525578240. Its totient is φ = 14323492310400.

The previous prime is 23221320232309. The next prime is 23221320232379. The reversal of 23221320232311 is 11323202312232.

23221320232311 is a `hidden beast` number, since 2 + 3 + 2 + 2 + 1 + 320 + 2 + 323 + 11 = 666.

It is not a de Polignac number, because 23221320232311 - 2¹ = 23221320232309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221320232711) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1161462531 + ... + 1161482523.

It is an arithmetic number, because the mean of its divisors is an integer number (467094069728).

Almost surely, 2^{23221320232311} is an apocalyptic number.

23221320232311 is a deficient number, since it is larger than the sum of its proper divisors (14146205345929).

23221320232311 is a wasteful number, since it uses less digits than its factorization.

23221320232311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37618 (or 37609 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 23221320232311 its reverse (11323202312232), we get a palindrome (34544522544543).

The spelling of 23221320232311 in words is "twenty-three trillion, two hundred twenty-one billion, three hundred twenty million, two hundred thirty-two thousand, three hundred eleven".