23120501243 has 4 divisors (see below), whose sum is σ = 26423430000. Its totient is φ = 19817572488.

The previous prime is 23120501237. The next prime is 23120501293. The reversal of 23120501243 is 34210502132.

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

It is not a de Polignac number, because 23120501243 - 2¹⁰ = 23120500219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23120501233) 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, 1651464368 + ... + 1651464381.

It is an arithmetic number, because the mean of its divisors is an integer number (6605857500).

Almost surely, 2^23120501243 is an apocalyptic number.

23120501243 is a deficient number, since it is larger than the sum of its proper divisors (3302928757).

23120501243 is an equidigital number, since it uses as much as digits as its factorization.

23120501243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3302928756.

The product of its (nonzero) digits is 1440, while the sum is 23.

The spelling of 23120501243 in words is "twenty-three billion, one hundred twenty million, five hundred one thousand, two hundred forty-three".