2011031113 has 16 divisors (see below), whose sum is σ = 2476535040. Its totient is φ = 1590232896.

The previous prime is 2011031069. The next prime is 2011031119. The reversal of 2011031113 is 3111301102.

It is a de Polignac number, because none of the positive numbers 2^k-2011031113 is a prime.

It is a super-2 number, since 2×2011031113² = 8088492274908037538, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 2011031093 and 2011031102.

It is not an unprimeable number, because it can be changed into a prime (2011031119) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 184623 + ... + 195211.

It is an arithmetic number, because the mean of its divisors is an integer number (154783440).

Almost surely, 2^2011031113 is an apocalyptic number.

It is an amenable number.

2011031113 is a deficient number, since it is larger than the sum of its proper divisors (465503927).

2011031113 is a wasteful number, since it uses less digits than its factorization.

2011031113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12696.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 2011031113 is about 44844.5215494602. The cubic root of 2011031113 is about 1262.2331927514.

Adding to 2011031113 its reverse (3111301102), we get a palindrome (5122332215).

The spelling of 2011031113 in words is "two billion, eleven million, thirty-one thousand, one hundred thirteen".