23136497901 has 24 divisors (see below), whose sum is σ = 36592083840. Its totient is φ = 13970361600.

The previous prime is 23136497899. The next prime is 23136497981. The reversal of 23136497901 is 10979463132.

23136497901 is a `hidden beast` number, since 23 + 136 + 497 + 9 + 0 + 1 = 666.

It is not a de Polignac number, because 23136497901 - 2¹ = 23136497899 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23136497981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 404356 + ... + 458013.

It is an arithmetic number, because the mean of its divisors is an integer number (1524670160).

Almost surely, 2^23136497901 is an apocalyptic number.

It is an amenable number.

23136497901 is a deficient number, since it is larger than the sum of its proper divisors (13455585939).

23136497901 is a wasteful number, since it uses less digits than its factorization.

23136497901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862657 (or 862654 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 45.

The spelling of 23136497901 in words is "twenty-three billion, one hundred thirty-six million, four hundred ninety-seven thousand, nine hundred one".