3012012321 has 8 divisors (see below), whose sum is σ = 4018015584. Its totient is φ = 2007008640.

The previous prime is 3012012319. The next prime is 3012012323. The reversal of 3012012321 is 1232102103.

It is an interprime number because it is at equal distance from previous prime (3012012319) and next prime (3012012323).

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

It is not a de Polignac number, because 3012012321 - 2¹ = 3012012319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3012012321.

It is not an unprimeable number, because it can be changed into a prime (3012012323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 242835 + ... + 254936.

It is an arithmetic number, because the mean of its divisors is an integer number (502251948).

Almost surely, 2^3012012321 is an apocalyptic number.

It is an amenable number.

3012012321 is a deficient number, since it is larger than the sum of its proper divisors (1006003263).

3012012321 is a wasteful number, since it uses less digits than its factorization.

3012012321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499791.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 3012012321 is about 54881.8031864843. The cubic root of 3012012321 is about 1444.1719806072.

Adding to 3012012321 its reverse (1232102103), we get a palindrome (4244114424).

It can be divided in two parts, 30 and 12012321, that added together give a triangular number (12012351 = T₄₉₀₁).

The spelling of 3012012321 in words is "three billion, twelve million, twelve thousand, three hundred twenty-one".