23534512143 has 32 divisors (see below), whose sum is σ = 32081280000. Its totient is φ = 15343091712.

The previous prime is 23534512123. The next prime is 23534512151. The reversal of 23534512143 is 34121543532.

It is not a de Polignac number, because 23534512143 - 2¹² = 23534508047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23534512123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25332703 + ... + 25333631.

It is an arithmetic number, because the mean of its divisors is an integer number (1002540000).

Almost surely, 2^23534512143 is an apocalyptic number.

23534512143 is a deficient number, since it is larger than the sum of its proper divisors (8546767857).

23534512143 is a wasteful number, since it uses less digits than its factorization.

23534512143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1919.

The product of its digits is 43200, while the sum is 33.

The spelling of 23534512143 in words is "twenty-three billion, five hundred thirty-four million, five hundred twelve thousand, one hundred forty-three".