1320111303211 has 4 divisors (see below), whose sum is σ = 1320116791000. Its totient is φ = 1320105815424.

The previous prime is 1320111303131. The next prime is 1320111303293. The reversal of 1320111303211 is 1123031110231.

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 1320111303211 - 2³⁵ = 1285751564843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320111303311) 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, 2365686 + ... + 2869963.

It is an arithmetic number, because the mean of its divisors is an integer number (330029197750).

Almost surely, 2^{1320111303211} is an apocalyptic number.

1320111303211 is a deficient number, since it is larger than the sum of its proper divisors (5487789).

1320111303211 is an equidigital number, since it uses as much as digits as its factorization.

1320111303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5487788.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 1320111303211 its reverse (1123031110231), we get a palindrome (2443142413442).

The spelling of 1320111303211 in words is "one trillion, three hundred twenty billion, one hundred eleven million, three hundred three thousand, two hundred eleven".