2111131303 has 4 divisors (see below), whose sum is σ = 2112125040. Its totient is φ = 2110137568.

The previous prime is 2111131301. The next prime is 2111131313. The reversal of 2111131303 is 3031311112.

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 2111131303 - 2¹ = 2111131301 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 (2111131301) 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, 493675 + ... + 497932.

It is an arithmetic number, because the mean of its divisors is an integer number (528031260).

Almost surely, 2^2111131303 is an apocalyptic number.

2111131303 is a deficient number, since it is larger than the sum of its proper divisors (993737).

2111131303 is an equidigital number, since it uses as much as digits as its factorization.

2111131303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993736.

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

The square root of 2111131303 is about 45947.0489041462. The cubic root of 2111131303 is about 1282.8378003340.

Adding to 2111131303 its reverse (3031311112), we get a palindrome (5142442415).

The spelling of 2111131303 in words is "two billion, one hundred eleven million, one hundred thirty-one thousand, three hundred three".