23001238957 has 2 divisors, whose sum is σ = 23001238958. Its totient is φ = 23001238956.

The previous prime is 23001238933. The next prime is 23001238991. The reversal of 23001238957 is 75983210032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21471333961 + 1529904996 = 146531^2 + 39114^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001238957 - 2³¹ = 20853755309 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23001238927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500619478 + 11500619479.

It is an arithmetic number, because the mean of its divisors is an integer number (11500619479).

Almost surely, 2^23001238957 is an apocalyptic number.

It is an amenable number.

23001238957 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001238957 is an equidigital number, since it uses as much as digits as its factorization.

23001238957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 40.

Adding to 23001238957 its reverse (75983210032), we get a palindrome (98984448989).

The spelling of 23001238957 in words is "twenty-three billion, one million, two hundred thirty-eight thousand, nine hundred fifty-seven".