2111131112 has 16 divisors (see below), whose sum is σ = 3965336100. Its totient is φ = 1053708160.

The previous prime is 2111131109. The next prime is 2111131159. The reversal of 2111131112 is 2111311112.

It can be written as a sum of positive squares in 2 ways, for example, as 2072616676 + 38514436 = 45526^2 + 6206^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227339 + ... + 236442.

Almost surely, 2^2111131112 is an apocalyptic number.

It is an amenable number.

2111131112 is a deficient number, since it is larger than the sum of its proper divisors (1854204988).

2111131112 is a wasteful number, since it uses less digits than its factorization.

2111131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464356 (or 464352 counting only the distinct ones).

The product of its digits is 12, while the sum is 14.

The square root of 2111131112 is about 45947.0468256666. The cubic root of 2111131112 is about 1282.8377616467.

Adding to 2111131112 its reverse (2111311112), we get a palindrome (4222442224).

The spelling of 2111131112 in words is "two billion, one hundred eleven million, one hundred thirty-one thousand, one hundred twelve".