23620320543 has 4 divisors (see below), whose sum is σ = 31493760728. Its totient is φ = 15746880360.

The previous prime is 23620320533. The next prime is 23620320593. The reversal of 23620320543 is 34502302632.

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

It is not a de Polignac number, because 23620320543 - 2¹⁰ = 23620319519 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23620320543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23620320533) 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, 3936720088 + ... + 3936720093.

It is an arithmetic number, because the mean of its divisors is an integer number (7873440182).

Almost surely, 2^23620320543 is an apocalyptic number.

23620320543 is a deficient number, since it is larger than the sum of its proper divisors (7873440185).

23620320543 is an equidigital number, since it uses as much as digits as its factorization.

23620320543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7873440184.

The product of its (nonzero) digits is 25920, while the sum is 30.

The spelling of 23620320543 in words is "twenty-three billion, six hundred twenty million, three hundred twenty thousand, five hundred forty-three".