1312221103313 has 8 divisors (see below), whose sum is σ = 1334772286848. Its totient is φ = 1289830426864.

The previous prime is 1312221103309. The next prime is 1312221103367. The reversal of 1312221103313 is 3133011222131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312221103313 - 2² = 1312221103309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312221103393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40110281 + ... + 40142982.

It is an arithmetic number, because the mean of its divisors is an integer number (166846535856).

Almost surely, 2^{1312221103313} is an apocalyptic number.

It is an amenable number.

1312221103313 is a deficient number, since it is larger than the sum of its proper divisors (22551183535).

1312221103313 is an equidigital number, since it uses as much as digits as its factorization.

1312221103313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80253543.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1312221103313 its reverse (3133011222131), we get a palindrome (4445232325444).

The spelling of 1312221103313 in words is "one trillion, three hundred twelve billion, two hundred twenty-one million, one hundred three thousand, three hundred thirteen".