13201121312 has 12 divisors (see below), whose sum is σ = 25989707646. Its totient is φ = 6600560640.

The previous prime is 13201121267. The next prime is 13201121341. The reversal of 13201121312 is 21312110231.

It can be written as a sum of positive squares in only one way, i.e., 7328044816 + 5873076496 = 85604^2 + 76636^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 206267489 + ... + 206267552.

Almost surely, 2^13201121312 is an apocalyptic number.

It is an amenable number.

13201121312 is a deficient number, since it is larger than the sum of its proper divisors (12788586334).

13201121312 is an equidigital number, since it uses as much as digits as its factorization.

13201121312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412535051 (or 412535043 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13201121312 its reverse (21312110231), we get a palindrome (34513231543).

The spelling of 13201121312 in words is "thirteen billion, two hundred one million, one hundred twenty-one thousand, three hundred twelve".