23143022321 has 2 divisors, whose sum is σ = 23143022322. Its totient is φ = 23143022320.

The previous prime is 23143022299. The next prime is 23143022339. The reversal of 23143022321 is 12322034132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16832467600 + 6310554721 = 129740^2 + 79439^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23143022321 is a prime.

It is not a weakly prime, because it can be changed into another prime (23143022341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11571511160 + 11571511161.

It is an arithmetic number, because the mean of its divisors is an integer number (11571511161).

Almost surely, 2^23143022321 is an apocalyptic number.

It is an amenable number.

23143022321 is a deficient number, since it is larger than the sum of its proper divisors (1).

23143022321 is an equidigital number, since it uses as much as digits as its factorization.

23143022321 is an evil number, because the sum of its binary digits is even.

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

Adding to 23143022321 its reverse (12322034132), we get a palindrome (35465056453).

The spelling of 23143022321 in words is "twenty-three billion, one hundred forty-three million, twenty-two thousand, three hundred twenty-one".