3812012111 has 8 divisors (see below), whose sum is σ = 3994829280. Its totient is φ = 3630618112.

The previous prime is 3812012093. The next prime is 3812012117. The reversal of 3812012111 is 1112102183.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3812012111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3812012117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 350306 + ... + 361023.

It is an arithmetic number, because the mean of its divisors is an integer number (499353660).

Almost surely, 2^3812012111 is an apocalyptic number.

3812012111 is a deficient number, since it is larger than the sum of its proper divisors (182817169).

3812012111 is a wasteful number, since it uses less digits than its factorization.

3812012111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 711585.

The product of its (nonzero) digits is 96, while the sum is 20.

The square root of 3812012111 is about 61741.4942400976. The cubic root of 3812012111 is about 1562.1333008356.

Adding to 3812012111 its reverse (1112102183), we get a palindrome (4924114294).

The spelling of 3812012111 in words is "three billion, eight hundred twelve million, twelve thousand, one hundred eleven".