23543663123 has 4 divisors (see below), whose sum is σ = 23618882808. Its totient is φ = 23468443440.

The previous prime is 23543663063. The next prime is 23543663131. The reversal of 23543663123 is 32136634532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23543663123 - 2¹⁰ = 23543662099 is a prime.

It is a super-2 number, since 2×23543663123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23543663153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37609373 + ... + 37609998.

It is an arithmetic number, because the mean of its divisors is an integer number (5904720702).

Almost surely, 2^23543663123 is an apocalyptic number.

23543663123 is a deficient number, since it is larger than the sum of its proper divisors (75219685).

23543663123 is an equidigital number, since it uses as much as digits as its factorization.

23543663123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75219684.

The product of its digits is 233280, while the sum is 38.

The spelling of 23543663123 in words is "twenty-three billion, five hundred forty-three million, six hundred sixty-three thousand, one hundred twenty-three".