13213543345 has 8 divisors (see below), whose sum is σ = 16242990120. Its totient is φ = 10313009280.

The previous prime is 13213543319. The next prime is 13213543361. The reversal of 13213543345 is 54334531231.

It can be written as a sum of positive squares in 4 ways, for example, as 20034576 + 13193508769 = 4476^2 + 114863^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13213543345 - 2⁹ = 13213542833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13213543345.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32227950 + ... + 32228359.

It is an arithmetic number, because the mean of its divisors is an integer number (2030373765).

Almost surely, 2^13213543345 is an apocalyptic number.

It is an amenable number.

13213543345 is a deficient number, since it is larger than the sum of its proper divisors (3029446775).

13213543345 is an equidigital number, since it uses as much as digits as its factorization.

13213543345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64456355.

The product of its digits is 64800, while the sum is 34.

The spelling of 13213543345 in words is "thirteen billion, two hundred thirteen million, five hundred forty-three thousand, three hundred forty-five".