13205213245 has 16 divisors (see below), whose sum is σ = 18380308608. Its totient is φ = 8919852480.

The previous prime is 13205213213. The next prime is 13205213257. The reversal of 13205213245 is 54231250231.

It is not a de Polignac number, because 13205213245 - 2⁵ = 13205213213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2813266 + ... + 2817955.

It is an arithmetic number, because the mean of its divisors is an integer number (1148769288).

Almost surely, 2^13205213245 is an apocalyptic number.

It is an amenable number.

13205213245 is a deficient number, since it is larger than the sum of its proper divisors (5175095363).

13205213245 is an equidigital number, since it uses as much as digits as its factorization.

13205213245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631300.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 13205213245 its reverse (54231250231), we get a palindrome (67436463476).

The spelling of 13205213245 in words is "thirteen billion, two hundred five million, two hundred thirteen thousand, two hundred forty-five".