2102003311 has 4 divisors (see below), whose sum is σ = 2111965624. Its totient is φ = 2092041000.

The previous prime is 2102003279. The next prime is 2102003339. The reversal of 2102003311 is 1133002012.

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 2102003311 - 2⁵ = 2102003279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102003291 and 2102003300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102003381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4980840 + ... + 4981261.

It is an arithmetic number, because the mean of its divisors is an integer number (527991406).

Almost surely, 2^2102003311 is an apocalyptic number.

2102003311 is a deficient number, since it is larger than the sum of its proper divisors (9962313).

2102003311 is an equidigital number, since it uses as much as digits as its factorization.

2102003311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9962312.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2102003311 is about 45847.6096541575. The cubic root of 2102003311 is about 1280.9862416540.

Adding to 2102003311 its reverse (1133002012), we get a palindrome (3235005323).

The spelling of 2102003311 in words is "two billion, one hundred two million, three thousand, three hundred eleven".