2113231112 has 16 divisors (see below), whose sum is σ = 3982841340. Its totient is φ = 1051140096.

The previous prime is 2113231097. The next prime is 2113231139. The reversal of 2113231112 is 2111323112.

It can be written as a sum of positive squares in 2 ways, for example, as 1879569316 + 233661796 = 43354^2 + 15286^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 682793 + ... + 685880.

Almost surely, 2^2113231112 is an apocalyptic number.

It is an amenable number.

2113231112 is a deficient number, since it is larger than the sum of its proper divisors (1869610228).

2113231112 is a wasteful number, since it uses less digits than its factorization.

2113231112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368872 (or 1368868 counting only the distinct ones).

The product of its digits is 72, while the sum is 17.

The square root of 2113231112 is about 45969.8935391415. The cubic root of 2113231112 is about 1283.2629786509.

Adding to 2113231112 its reverse (2111323112), we get a palindrome (4224554224).

It can be divided in two parts, 211 and 3231112, that added together give a palindrome (3231323).

The spelling of 2113231112 in words is "two billion, one hundred thirteen million, two hundred thirty-one thousand, one hundred twelve".