2112529891 has 2 divisors, whose sum is σ = 2112529892. Its totient is φ = 2112529890.

The previous prime is 2112529883. The next prime is 2112529907. The reversal of 2112529891 is 1989252112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112529891 - 2³ = 2112529883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2112529591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056264945 + 1056264946.

It is an arithmetic number, because the mean of its divisors is an integer number (1056264946).

Almost surely, 2^2112529891 is an apocalyptic number.

2112529891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112529891 is an equidigital number, since it uses as much as digits as its factorization.

2112529891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 40.

The square root of 2112529891 is about 45962.2659471876. The cubic root of 2112529891 is about 1283.1210237565.

The spelling of 2112529891 in words is "two billion, one hundred twelve million, five hundred twenty-nine thousand, eight hundred ninety-one".