23428270813 has 4 divisors (see below), whose sum is σ = 23482378108. Its totient is φ = 23374163520.

The previous prime is 23428270807. The next prime is 23428270819. The reversal of 23428270813 is 31807282432.

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

It is an interprime number because it is at equal distance from previous prime (23428270807) and next prime (23428270819).

It can be written as a sum of positive squares in 2 ways, for example, as 13096971364 + 10331299449 = 114442^2 + 101643^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23428270813 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 (23428270819) 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, 27052998 + ... + 27053863.

It is an arithmetic number, because the mean of its divisors is an integer number (5870594527).

Almost surely, 2^23428270813 is an apocalyptic number.

It is an amenable number.

23428270813 is a deficient number, since it is larger than the sum of its proper divisors (54107295).

23428270813 is an equidigital number, since it uses as much as digits as its factorization.

23428270813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54107294.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 23428270813 in words is "twenty-three billion, four hundred twenty-eight million, two hundred seventy thousand, eight hundred thirteen".