2111313111 has 8 divisors (see below), whose sum is σ = 2816596224. Its totient is φ = 1406786040.

The previous prime is 2111313109. The next prime is 2111313133. The reversal of 2111313111 is 1113131112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2111313111 - 2¹ = 2111313109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2111313101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182461 + ... + 193686.

It is an arithmetic number, because the mean of its divisors is an integer number (352074528).

Almost surely, 2^2111313111 is an apocalyptic number.

2111313111 is a deficient number, since it is larger than the sum of its proper divisors (705283113).

2111313111 is a wasteful number, since it uses less digits than its factorization.

2111313111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378021.

The product of its digits is 18, while the sum is 15.

The square root of 2111313111 is about 45949.0273128823. The cubic root of 2111313111 is about 1282.8746247418.

Adding to 2111313111 its reverse (1113131112), we get a palindrome (3224444223).

It can be divided in two parts, 2 and 111313111, that multiplied together give a palindrome (222626222).

The spelling of 2111313111 in words is "two billion, one hundred eleven million, three hundred thirteen thousand, one hundred eleven".