3111223032012 has 96 divisors (see below), whose sum is σ = 7556978257920. Its totient is φ = 995032684800.

The previous prime is 3111223032011. The next prime is 3111223032013. The reversal of 3111223032012 is 2102303221113.

It is an interprime number because it is at equal distance from previous prime (3111223032011) and next prime (3111223032013).

It is a self number, because there is not a number n which added to its sum of digits gives 3111223032012.

It is not an unprimeable number, because it can be changed into a prime (3111223032011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 314228262 + ... + 314238162.

It is an arithmetic number, because the mean of its divisors is an integer number (78718523520).

Almost surely, 2^{3111223032012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3111223032012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3778489128960).

3111223032012 is an abundant number, since it is smaller than the sum of its proper divisors (4445755225908).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3111223032012 is a wasteful number, since it uses less digits than its factorization.

3111223032012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15511 (or 15509 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 3111223032012 its reverse (2102303221113), we get a palindrome (5213526253125).

The spelling of 3111223032012 in words is "three trillion, one hundred eleven billion, two hundred twenty-three million, thirty-two thousand, twelve".