2311122213 has 12 divisors (see below), whose sum is σ = 3461928288. Its totient is φ = 1540747980.

The previous prime is 2311122193. The next prime is 2311122227. The reversal of 2311122213 is 3122211132.

It is not a de Polignac number, because 2311122213 - 2⁵ = 2311122181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311122263) 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, 4755153 + ... + 4755638.

It is an arithmetic number, because the mean of its divisors is an integer number (288494024).

Almost surely, 2^2311122213 is an apocalyptic number.

It is an amenable number.

2311122213 is a deficient number, since it is larger than the sum of its proper divisors (1150806075).

2311122213 is an frugal number, since it uses more digits than its factorization.

2311122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510806 (or 9510794 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 2311122213 is about 48074.1324726718. The cubic root of 2311122213 is about 1322.1304388206.

Adding to 2311122213 its reverse (3122211132), we get a palindrome (5433333345).

The spelling of 2311122213 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, two hundred thirteen".