23075440247 has 2 divisors, whose sum is σ = 23075440248. Its totient is φ = 23075440246.

The previous prime is 23075440183. The next prime is 23075440277. The reversal of 23075440247 is 74204457032.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23075440247 - 2⁶ = 23075440183 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23075440247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23075440277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11537720123 + 11537720124.

It is an arithmetic number, because the mean of its divisors is an integer number (11537720124).

Almost surely, 2^23075440247 is an apocalyptic number.

23075440247 is a deficient number, since it is larger than the sum of its proper divisors (1).

23075440247 is an equidigital number, since it uses as much as digits as its factorization.

23075440247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 188160, while the sum is 38.

Adding to 23075440247 its reverse (74204457032), we get a palindrome (97279897279).

The spelling of 23075440247 in words is "twenty-three billion, seventy-five million, four hundred forty thousand, two hundred forty-seven".