23201344427 has 2 divisors, whose sum is σ = 23201344428. Its totient is φ = 23201344426.

The previous prime is 23201344421. The next prime is 23201344447. The reversal of 23201344427 is 72444310232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23201344427 - 2¹⁸ = 23201082283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23201344393 and 23201344402.

It is not a weakly prime, because it can be changed into another prime (23201344421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11600672213 + 11600672214.

It is an arithmetic number, because the mean of its divisors is an integer number (11600672214).

Almost surely, 2^23201344427 is an apocalyptic number.

23201344427 is a deficient number, since it is larger than the sum of its proper divisors (1).

23201344427 is an equidigital number, since it uses as much as digits as its factorization.

23201344427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 32.

Adding to 23201344427 its reverse (72444310232), we get a palindrome (95645654659).

The spelling of 23201344427 in words is "twenty-three billion, two hundred one million, three hundred forty-four thousand, four hundred twenty-seven".