23230132021 has 4 divisors (see below), whose sum is σ = 23230842444. Its totient is φ = 23229421600.

The previous prime is 23230132019. The next prime is 23230132031. The reversal of 23230132021 is 12023103232.

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 12808580625 + 10421551396 = 113175^2 + 102086^2 .

It is a cyclic number.

It is not a de Polignac number, because 23230132021 - 2¹ = 23230132019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23230132021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23230132031) 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, 303670 + ... + 372391.

It is an arithmetic number, because the mean of its divisors is an integer number (5807710611).

Almost surely, 2^23230132021 is an apocalyptic number.

It is an amenable number.

23230132021 is a deficient number, since it is larger than the sum of its proper divisors (710423).

23230132021 is an equidigital number, since it uses as much as digits as its factorization.

23230132021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710422.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23230132021 its reverse (12023103232), we get a palindrome (35253235253).

The spelling of 23230132021 in words is "twenty-three billion, two hundred thirty million, one hundred thirty-two thousand, twenty-one".