23221321311 has 16 divisors (see below), whose sum is σ = 32126151680. Its totient is φ = 14903861760.

The previous prime is 23221321297. The next prime is 23221321313. The reversal of 23221321311 is 11312312232.

It is not a de Polignac number, because 23221321311 - 2⁶ = 23221321247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23221321313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628921 + ... + 664818.

It is an arithmetic number, because the mean of its divisors is an integer number (2007884480).

Almost surely, 2^23221321311 is an apocalyptic number.

23221321311 is a deficient number, since it is larger than the sum of its proper divisors (8904830369).

23221321311 is a wasteful number, since it uses less digits than its factorization.

23221321311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1293966.

The product of its digits is 432, while the sum is 21.

Adding to 23221321311 its reverse (11312312232), we get a palindrome (34533633543).

The spelling of 23221321311 in words is "twenty-three billion, two hundred twenty-one million, three hundred twenty-one thousand, three hundred eleven".