23033211321 has 4 divisors (see below), whose sum is σ = 30710948432. Its totient is φ = 15355474212.

The previous prime is 23033211259. The next prime is 23033211337. The reversal of 23033211321 is 12311233032.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 23033211321 - 2¹⁷ = 23033080249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23033211121) 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, 3838868551 + ... + 3838868556.

It is an arithmetic number, because the mean of its divisors is an integer number (7677737108).

Almost surely, 2^23033211321 is an apocalyptic number.

It is an amenable number.

23033211321 is a deficient number, since it is larger than the sum of its proper divisors (7677737111).

23033211321 is an equidigital number, since it uses as much as digits as its factorization.

23033211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7677737110.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23033211321 its reverse (12311233032), we get a palindrome (35344444353).

The spelling of 23033211321 in words is "twenty-three billion, thirty-three million, two hundred eleven thousand, three hundred twenty-one".