1320031310011 has 4 divisors (see below), whose sum is σ = 1320063623152. Its totient is φ = 1319998996872.

The previous prime is 1320031310009. The next prime is 1320031310029. The reversal of 1320031310011 is 1100131300231.

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 1320031310011 - 2¹ = 1320031310009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1326031310011) 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, 16095216 + ... + 16177021.

It is an arithmetic number, because the mean of its divisors is an integer number (330015905788).

Almost surely, 2^{1320031310011} is an apocalyptic number.

1320031310011 is a deficient number, since it is larger than the sum of its proper divisors (32313141).

1320031310011 is an equidigital number, since it uses as much as digits as its factorization.

1320031310011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32313140.

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

Adding to 1320031310011 its reverse (1100131300231), we get a palindrome (2420162610242).

The spelling of 1320031310011 in words is "one trillion, three hundred twenty billion, thirty-one million, three hundred ten thousand, eleven".