23322220321 has 4 divisors (see below), whose sum is σ = 24694115652. Its totient is φ = 21950324992.

The previous prime is 23322220277. The next prime is 23322220333. The reversal of 23322220321 is 12302222332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19068571921 + 4253648400 = 138089^2 + 65220^2 .

It is a cyclic number.

It is not a de Polignac number, because 23322220321 - 2⁷ = 23322220193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23322220292 and 23322220301.

It is not an unprimeable number, because it can be changed into a prime (23322220351) 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, 685947640 + ... + 685947673.

It is an arithmetic number, because the mean of its divisors is an integer number (6173528913).

Almost surely, 2^23322220321 is an apocalyptic number.

It is an amenable number.

23322220321 is a deficient number, since it is larger than the sum of its proper divisors (1371895331).

23322220321 is a wasteful number, since it uses less digits than its factorization.

23322220321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371895330.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 23322220321 its reverse (12302222332), we get a palindrome (35624442653).

The spelling of 23322220321 in words is "twenty-three billion, three hundred twenty-two million, two hundred twenty thousand, three hundred twenty-one".