13210303312 has 10 divisors (see below), whose sum is σ = 25594962698. Its totient is φ = 6605151648.

The previous prime is 13210303303. The next prime is 13210303313. The reversal of 13210303312 is 21330301231.

It can be written as a sum of positive squares in only one way, i.e., 12513554496 + 696748816 = 111864^2 + 26396^2 .

It is a super-2 number, since 2×13210303312² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13210303312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13210303313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412821963 + ... + 412821994.

Almost surely, 2^13210303312 is an apocalyptic number.

It is an amenable number.

13210303312 is a deficient number, since it is larger than the sum of its proper divisors (12384659386).

13210303312 is an equidigital number, since it uses as much as digits as its factorization.

13210303312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825643965 (or 825643959 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 13210303312 its reverse (21330301231), we get a palindrome (34540604543).

The spelling of 13210303312 in words is "thirteen billion, two hundred ten million, three hundred three thousand, three hundred twelve".