23143996511 has 16 divisors (see below), whose sum is σ = 23899459584. Its totient is φ = 22398876864.

The previous prime is 23143996483. The next prime is 23143996549. The reversal of 23143996511 is 11569934132.

It is a cyclic number.

It is not a de Polignac number, because 23143996511 - 2¹⁴ = 23143980127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23143996111) 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, 5114696 + ... + 5119218.

It is an arithmetic number, because the mean of its divisors is an integer number (1493716224).

Almost surely, 2^23143996511 is an apocalyptic number.

23143996511 is a deficient number, since it is larger than the sum of its proper divisors (755463073).

23143996511 is a wasteful number, since it uses less digits than its factorization.

23143996511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630.

The product of its digits is 174960, while the sum is 44.

The spelling of 23143996511 in words is "twenty-three billion, one hundred forty-three million, nine hundred ninety-six thousand, five hundred eleven".