23001163457 has 2 divisors, whose sum is σ = 23001163458. Its totient is φ = 23001163456.

The previous prime is 23001163453. The next prime is 23001163477. The reversal of 23001163457 is 75436110032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13436519056 + 9564644401 = 115916^2 + 97799^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001163457 - 2² = 23001163453 is a prime.

It is not a weakly prime, because it can be changed into another prime (23001163453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500581728 + 11500581729.

It is an arithmetic number, because the mean of its divisors is an integer number (11500581729).

Almost surely, 2^23001163457 is an apocalyptic number.

It is an amenable number.

23001163457 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001163457 is an equidigital number, since it uses as much as digits as its factorization.

23001163457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 23001163457 its reverse (75436110032), we get a palindrome (98437273489).

The spelling of 23001163457 in words is "twenty-three billion, one million, one hundred sixty-three thousand, four hundred fifty-seven".