2112631 has 2 divisors, whose sum is σ = 2112632. Its totient is φ = 2112630.

The previous prime is 2112601. The next prime is 2112683. The reversal of 2112631 is 1362112.

2112631 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2112631 - 2¹⁵ = 2079863 is a prime.

It is a super-2 number, since 2×2112631² = 8926419484322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2112601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1056315 + 1056316.

It is an arithmetic number, because the mean of its divisors is an integer number (1056316).

2^2112631 is an apocalyptic number.

2112631 is a deficient number, since it is larger than the sum of its proper divisors (1).

2112631 is an equidigital number, since it uses as much as digits as its factorization.

2112631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 16.

The square root of 2112631 is about 1453.4892500462. The cubic root of 2112631 is about 128.3141494159.

Adding to 2112631 its reverse (1362112), we get a palindrome (3474743).

The spelling of 2112631 in words is "two million, one hundred twelve thousand, six hundred thirty-one".