2112312106 has 4 divisors (see below), whose sum is σ = 3168468162. Its totient is φ = 1056156052.

The previous prime is 2112312089. The next prime is 2112312107. The reversal of 2112312106 is 6012132112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2058890625 + 53421481 = 45375^2 + 7309^2 .

It is not an unprimeable number, because it can be changed into a prime (2112312107) by changing a digit.

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, 528078025 + ... + 528078028.

Almost surely, 2^2112312106 is an apocalyptic number.

2112312106 is a deficient number, since it is larger than the sum of its proper divisors (1056156056).

2112312106 is a wasteful number, since it uses less digits than its factorization.

2112312106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1056156055.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2112312106 is about 45959.8967144183. The cubic root of 2112312106 is about 1283.0769290565.

Adding to 2112312106 its reverse (6012132112), we get a palindrome (8124444218).

The spelling of 2112312106 in words is "two billion, one hundred twelve million, three hundred twelve thousand, one hundred six".