23145302357 has 2 divisors, whose sum is σ = 23145302358. Its totient is φ = 23145302356.

The previous prime is 23145302347. The next prime is 23145302441. The reversal of 23145302357 is 75320354132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 23020779076 + 124523281 = 151726^2 + 11159^2 .

It is a cyclic number.

It is not a de Polignac number, because 23145302357 - 2⁸ = 23145302101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23145302347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11572651178 + 11572651179.

It is an arithmetic number, because the mean of its divisors is an integer number (11572651179).

Almost surely, 2^23145302357 is an apocalyptic number.

It is an amenable number.

23145302357 is a deficient number, since it is larger than the sum of its proper divisors (1).

23145302357 is an equidigital number, since it uses as much as digits as its factorization.

23145302357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75600, while the sum is 35.

Adding to 23145302357 its reverse (75320354132), we get a palindrome (98465656489).

The spelling of 23145302357 in words is "twenty-three billion, one hundred forty-five million, three hundred two thousand, three hundred fifty-seven".