1313103103321 has 4 divisors (see below), whose sum is σ = 1313107120000. Its totient is φ = 1313099086644.

The previous prime is 1313103103307. The next prime is 1313103103349. The reversal of 1313103103321 is 1233013013131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1313103103321 - 2⁹ = 1313103102809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313103103292 and 1313103103301.

It is not an unprimeable number, because it can be changed into a prime (1313103103381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1469841 + ... + 2187838.

It is an arithmetic number, because the mean of its divisors is an integer number (328276780000).

Almost surely, 2^{1313103103321} is an apocalyptic number.

It is an amenable number.

1313103103321 is a deficient number, since it is larger than the sum of its proper divisors (4016679).

1313103103321 is an equidigital number, since it uses as much as digits as its factorization.

1313103103321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4016678.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 1313103103321 its reverse (1233013013131), we get a palindrome (2546116116452).

The spelling of 1313103103321 in words is "one trillion, three hundred thirteen billion, one hundred three million, one hundred three thousand, three hundred twenty-one".