3031309042812 has 144 divisors (see below), whose sum is σ = 8394324775200. Its totient is φ = 918058229760.

The previous prime is 3031309042757. The next prime is 3031309042813. The reversal of 3031309042812 is 2182409031303.

3031309042812 is a `hidden beast` number, since 3 + 0 + 3 + 130 + 90 + 428 + 12 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3031309042813) 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 47 ways as a sum of consecutive naturals, for example, 168969739 + ... + 168987677.

It is an arithmetic number, because the mean of its divisors is an integer number (58293922050).

Almost surely, 2^{3031309042812} 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 3031309042812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4197162387600).

3031309042812 is an abundant number, since it is smaller than the sum of its proper divisors (5363015732388).

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

3031309042812 is a wasteful number, since it uses less digits than its factorization.

3031309042812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27516 (or 27511 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The spelling of 3031309042812 in words is "three trillion, thirty-one billion, three hundred nine million, forty-two thousand, eight hundred twelve".