2102131112 has 8 divisors (see below), whose sum is σ = 3941495850. Its totient is φ = 1051065552.

The previous prime is 2102131099. The next prime is 2102131121. The reversal of 2102131112 is 2111312012.

It can be written as a sum of positive squares in only one way, i.e., 1652097316 + 450033796 = 40646^2 + 21214^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 131383187 + ... + 131383202.

Almost surely, 2^2102131112 is an apocalyptic number.

It is an amenable number.

2102131112 is a deficient number, since it is larger than the sum of its proper divisors (1839364738).

2102131112 is a wasteful number, since it uses less digits than its factorization.

2102131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262766395 (or 262766391 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2102131112 is about 45849.0033915678. The cubic root of 2102131112 is about 1281.0122022863.

Adding to 2102131112 its reverse (2111312012), we get a palindrome (4213443124).

Subtracting 2102131112 from its reverse (2111312012), we obtain a square (9180900 = 3030²).

The spelling of 2102131112 in words is "two billion, one hundred two million, one hundred thirty-one thousand, one hundred twelve".