23201344447 has 2 divisors, whose sum is σ = 23201344448. Its totient is φ = 23201344446.

The previous prime is 23201344427. The next prime is 23201344459. The reversal of 23201344447 is 74444310232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23201344447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23201344427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600672223 + 11600672224.

It is an arithmetic number, because the mean of its divisors is an integer number (11600672224).

Almost surely, 2^23201344447 is an apocalyptic number.

23201344447 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201344447 is an equidigital number, since it uses as much as digits as its factorization.

23201344447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 34.

Adding to 23201344447 its reverse (74444310232), we get a palindrome (97645654679).

The spelling of 23201344447 in words is "twenty-three billion, two hundred one million, three hundred forty-four thousand, four hundred forty-seven".