1312221200313 has 32 divisors (see below), whose sum is σ = 1780134125440. Its totient is φ = 859652352000.

The previous prime is 1312221200293. The next prime is 1312221200351. The reversal of 1312221200313 is 3130021222131.

It is not a de Polignac number, because 1312221200313 - 2²⁴ = 1312204423097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1312221200313.

It is not an unprimeable number, because it can be changed into a prime (1312221200113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205706358 + ... + 205712736.

It is an arithmetic number, because the mean of its divisors is an integer number (55629191420).

Almost surely, 2^{1312221200313} is an apocalyptic number.

It is an amenable number.

1312221200313 is a deficient number, since it is larger than the sum of its proper divisors (467912925127).

1312221200313 is a wasteful number, since it uses less digits than its factorization.

1312221200313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9769.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1312221200313 its reverse (3130021222131), we get a palindrome (4442242422444).

The spelling of 1312221200313 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, two hundred thousand, three hundred thirteen".