1320311110003 has 4 divisors (see below), whose sum is σ = 1323175125888. Its totient is φ = 1317447094120.

The previous prime is 1320311109989. The next prime is 1320311110007. The reversal of 1320311110003 is 3000111130231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1320311110003 - 2²¹ = 1320309012851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320311110007) 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, 1432007251 + ... + 1432008172.

It is an arithmetic number, because the mean of its divisors is an integer number (330793781472).

Almost surely, 2^{1320311110003} is an apocalyptic number.

1320311110003 is a deficient number, since it is larger than the sum of its proper divisors (2864015885).

1320311110003 is an equidigital number, since it uses as much as digits as its factorization.

1320311110003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2864015884.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1320311110003 its reverse (3000111130231), we get a palindrome (4320422240234).

The spelling of 1320311110003 in words is "one trillion, three hundred twenty billion, three hundred eleven million, one hundred ten thousand, three".