13201321312 has 48 divisors (see below), whose sum is σ = 26574921072. Its totient is φ = 6453780480.

The previous prime is 13201321291. The next prime is 13201321351. The reversal of 13201321312 is 21312310231.

It is a self number, because there is not a number n which added to its sum of digits gives 13201321312.

It is a congruent number.

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, 232012 + ... + 283252.

It is an arithmetic number, because the mean of its divisors is an integer number (553644189).

Almost surely, 2^13201321312 is an apocalyptic number.

It is an amenable number.

13201321312 is an abundant number, since it is smaller than the sum of its proper divisors (13373599760).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13201321312 is an equidigital number, since it uses as much as digits as its factorization.

13201321312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51431 (or 51423 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 13201321312 its reverse (21312310231), we get a palindrome (34513631543).

The spelling of 13201321312 in words is "thirteen billion, two hundred one million, three hundred twenty-one thousand, three hundred twelve".