1320110311313 has 4 divisors (see below), whose sum is σ = 1320362872560. Its totient is φ = 1319857750068.

The previous prime is 1320110311249. The next prime is 1320110311337. The reversal of 1320110311313 is 3131130110231.

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 1320110311313 - 2⁶ = 1320110311249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320110311813) 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, 126272783 + ... + 126283236.

It is an arithmetic number, because the mean of its divisors is an integer number (330090718140).

Almost surely, 2^{1320110311313} is an apocalyptic number.

It is an amenable number.

1320110311313 is a deficient number, since it is larger than the sum of its proper divisors (252561247).

1320110311313 is an equidigital number, since it uses as much as digits as its factorization.

1320110311313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252561246.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1320110311313 its reverse (3131130110231), we get a palindrome (4451240421544).

The spelling of 1320110311313 in words is "one trillion, three hundred twenty billion, one hundred ten million, three hundred eleven thousand, three hundred thirteen".