1331332320103 has 4 divisors (see below), whose sum is σ = 1331335560960. Its totient is φ = 1331329079248.

The previous prime is 1331332320083. The next prime is 1331332320151. The reversal of 1331332320103 is 3010232331331.

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 1331332320103 - 2⁹ = 1331332319591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331332320403) 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, 896398 + ... + 1861771.

It is an arithmetic number, because the mean of its divisors is an integer number (332833890240).

Almost surely, 2^{1331332320103} is an apocalyptic number.

1331332320103 is a deficient number, since it is larger than the sum of its proper divisors (3240857).

1331332320103 is an equidigital number, since it uses as much as digits as its factorization.

1331332320103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240856.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1331332320103 its reverse (3010232331331), we get a palindrome (4341564651434).

The spelling of 1331332320103 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-two million, three hundred twenty thousand, one hundred three".