2113120311 has 16 divisors (see below), whose sum is σ = 2829657600. Its totient is φ = 1402678368.

The previous prime is 2113120291. The next prime is 2113120313. The reversal of 2113120311 is 1130213112.

It is a happy number.

It is not a de Polignac number, because 2113120311 - 2²³ = 2104731703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2113120313) 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, 1040445 + ... + 1042473.

It is an arithmetic number, because the mean of its divisors is an integer number (176853600).

Almost surely, 2^2113120311 is an apocalyptic number.

2113120311 is a deficient number, since it is larger than the sum of its proper divisors (716537289).

2113120311 is a wasteful number, since it uses less digits than its factorization.

2113120311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3358.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2113120311 is about 45968.6883758934. The cubic root of 2113120311 is about 1283.2405502307.

Adding to 2113120311 its reverse (1130213112), we get a palindrome (3243333423).

The spelling of 2113120311 in words is "two billion, one hundred thirteen million, one hundred twenty thousand, three hundred eleven".