23513011263 has 16 divisors (see below), whose sum is σ = 39810389760. Its totient is φ = 13436006328.

The previous prime is 23513011259. The next prime is 23513011273. The reversal of 23513011263 is 36211031532.

23513011263 is a `hidden beast` number, since 2 + 351 + 301 + 1 + 2 + 6 + 3 = 666.

It is not a de Polignac number, because 23513011263 - 2² = 23513011259 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23513011273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62203545 + ... + 62203922.

It is an arithmetic number, because the mean of its divisors is an integer number (2488149360).

Almost surely, 2^23513011263 is an apocalyptic number.

23513011263 is a deficient number, since it is larger than the sum of its proper divisors (16297378497).

23513011263 is a wasteful number, since it uses less digits than its factorization.

23513011263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124407483 (or 124407477 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

Adding to 23513011263 its reverse (36211031532), we get a palindrome (59724042795).

The spelling of 23513011263 in words is "twenty-three billion, five hundred thirteen million, eleven thousand, two hundred sixty-three".