23203313321 has 2 divisors, whose sum is σ = 23203313322. Its totient is φ = 23203313320.

The previous prime is 23203313297. The next prime is 23203313339. The reversal of 23203313321 is 12331330232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12964099600 + 10239213721 = 113860^2 + 101189^2 .

It is a cyclic number.

It is not a de Polignac number, because 23203313321 - 2⁶ = 23203313257 is a prime.

It is not a weakly prime, because it can be changed into another prime (23203313351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11601656660 + 11601656661.

It is an arithmetic number, because the mean of its divisors is an integer number (11601656661).

Almost surely, 2^23203313321 is an apocalyptic number.

It is an amenable number.

23203313321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23203313321 is an equidigital number, since it uses as much as digits as its factorization.

23203313321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 23203313321 its reverse (12331330232), we get a palindrome (35534643553).

The spelling of 23203313321 in words is "twenty-three billion, two hundred three million, three hundred thirteen thousand, three hundred twenty-one".