23210230220321 has 4 divisors (see below), whose sum is σ = 23210250059412. Its totient is φ = 23210210381232.

The previous prime is 23210230220297. The next prime is 23210230220329. The reversal of 23210230220321 is 12302203201232.

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 4716454627600 + 18493775592721 = 2171740^2 + 4300439^2 .

It is a cyclic number.

It is not a de Polignac number, because 23210230220321 - 2³⁴ = 23193050351137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23210230220329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8046806 + ... + 10543791.

It is an arithmetic number, because the mean of its divisors is an integer number (5802562514853).

Almost surely, 2^{23210230220321} is an apocalyptic number.

It is an amenable number.

23210230220321 is a deficient number, since it is larger than the sum of its proper divisors (19839091).

23210230220321 is a wasteful number, since it uses less digits than its factorization.

23210230220321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19839090.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 23210230220321 its reverse (12302203201232), we get a palindrome (35512433421553).

The spelling of 23210230220321 in words is "twenty-three trillion, two hundred ten billion, two hundred thirty million, two hundred twenty thousand, three hundred twenty-one".