23005321439 has 2 divisors, whose sum is σ = 23005321440. Its totient is φ = 23005321438.

The previous prime is 23005321421. The next prime is 23005321447. The reversal of 23005321439 is 93412350032.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23005321439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23005321489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11502660719 + 11502660720.

It is an arithmetic number, because the mean of its divisors is an integer number (11502660720).

Almost surely, 2^23005321439 is an apocalyptic number.

23005321439 is a deficient number, since it is larger than the sum of its proper divisors (1).

23005321439 is an equidigital number, since it uses as much as digits as its factorization.

23005321439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19440, while the sum is 32.

The spelling of 23005321439 in words is "twenty-three billion, five million, three hundred twenty-one thousand, four hundred thirty-nine".