23232322021 has 4 divisors (see below), whose sum is σ = 23445462700. Its totient is φ = 23019181344.

The previous prime is 23232322019. The next prime is 23232322031. The reversal of 23232322021 is 12022323232.

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 20756164900 + 2476157121 = 144070^2 + 49761^2 .

It is a cyclic number.

It is not a de Polignac number, because 23232322021 - 2¹ = 23232322019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23232321983 and 23232322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23232322031) 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, 106570176 + ... + 106570393.

It is an arithmetic number, because the mean of its divisors is an integer number (5861365675).

Almost surely, 2^23232322021 is an apocalyptic number.

It is an amenable number.

23232322021 is a deficient number, since it is larger than the sum of its proper divisors (213140679).

23232322021 is a wasteful number, since it uses less digits than its factorization.

23232322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213140678.

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

Adding to 23232322021 its reverse (12022323232), we get a palindrome (35254645253).

The spelling of 23232322021 in words is "twenty-three billion, two hundred thirty-two million, three hundred twenty-two thousand, twenty-one".