2103115311 has 12 divisors (see below), whose sum is σ = 3314000040. Its totient is φ = 1274615280.

The previous prime is 2103115291. The next prime is 2103115369. The reversal of 2103115311 is 1135113012.

It is not a de Polignac number, because 2103115311 - 2⁶ = 2103115247 is a prime.

It is a super-2 number, since 2×2103115311² = 8846188022725253442, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104115311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10621696 + ... + 10621893.

It is an arithmetic number, because the mean of its divisors is an integer number (276166670).

Almost surely, 2^2103115311 is an apocalyptic number.

2103115311 is a deficient number, since it is larger than the sum of its proper divisors (1210884729).

2103115311 is a wasteful number, since it uses less digits than its factorization.

2103115311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21243606 (or 21243603 counting only the distinct ones).

The product of its (nonzero) digits is 90, while the sum is 18.

The square root of 2103115311 is about 45859.7351824016. The cubic root of 2103115311 is about 1281.2120905825.

Adding to 2103115311 its reverse (1135113012), we get a palindrome (3238228323).

The spelling of 2103115311 in words is "two billion, one hundred three million, one hundred fifteen thousand, three hundred eleven".