23001163477 has 2 divisors, whose sum is σ = 23001163478. Its totient is φ = 23001163476.

The previous prime is 23001163457. The next prime is 23001163481. The reversal of 23001163477 is 77436110032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19062220356 + 3938943121 = 138066^2 + 62761^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001163477 - 2²³ = 22992774869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23001163417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500581738 + 11500581739.

It is an arithmetic number, because the mean of its divisors is an integer number (11500581739).

Almost surely, 2^23001163477 is an apocalyptic number.

It is an amenable number.

23001163477 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001163477 is an equidigital number, since it uses as much as digits as its factorization.

23001163477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The spelling of 23001163477 in words is "twenty-three billion, one million, one hundred sixty-three thousand, four hundred seventy-seven".