2111320121303 has 4 divisors (see below), whose sum is σ = 2111349167568. Its totient is φ = 2111291075040.

The previous prime is 2111320121279. The next prime is 2111320121311. The reversal of 2111320121303 is 3031210231112.

It is a happy number.

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 2111320121303 - 2²⁰ = 2111319072727 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 (2111320121363) 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, 14413826 + ... + 14559567.

It is an arithmetic number, because the mean of its divisors is an integer number (527837291892).

Almost surely, 2^{2111320121303} is an apocalyptic number.

2111320121303 is a deficient number, since it is larger than the sum of its proper divisors (29046265).

2111320121303 is an equidigital number, since it uses as much as digits as its factorization.

2111320121303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29046264.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2111320121303 its reverse (3031210231112), we get a palindrome (5142530352415).

The spelling of 2111320121303 in words is "two trillion, one hundred eleven billion, three hundred twenty million, one hundred twenty-one thousand, three hundred three".