23542123503 has 4 divisors (see below), whose sum is σ = 31389498008. Its totient is φ = 15694749000.

The previous prime is 23542123487. The next prime is 23542123529. The reversal of 23542123503 is 30532124532.

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

It is not a de Polignac number, because 23542123503 - 2⁴ = 23542123487 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 (23542123543) 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, 3923687248 + ... + 3923687253.

It is an arithmetic number, because the mean of its divisors is an integer number (7847374502).

Almost surely, 2^23542123503 is an apocalyptic number.

23542123503 is a deficient number, since it is larger than the sum of its proper divisors (7847374505).

23542123503 is an equidigital number, since it uses as much as digits as its factorization.

23542123503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7847374504.

The product of its (nonzero) digits is 21600, while the sum is 30.

The spelling of 23542123503 in words is "twenty-three billion, five hundred forty-two million, one hundred twenty-three thousand, five hundred three".