3012203203021 has 4 divisors (see below), whose sum is σ = 3012881478844. Its totient is φ = 3011524927200.

The previous prime is 3012203202991. The next prime is 3012203203027. The reversal of 3012203203021 is 1203023022103.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1809331672996 + 1202871530025 = 1345114^2 + 1096755^2 .

It is a cyclic number.

It is not a de Polignac number, because 3012203203021 - 2¹³ = 3012203194829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3012203203021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3012203203027) 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 3 ways as a sum of consecutive naturals, for example, 339131250 + ... + 339140131.

It is an arithmetic number, because the mean of its divisors is an integer number (753220369711).

Almost surely, 2^{3012203203021} is an apocalyptic number.

It is an amenable number.

3012203203021 is a deficient number, since it is larger than the sum of its proper divisors (678275823).

3012203203021 is an equidigital number, since it uses as much as digits as its factorization.

3012203203021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678275822.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 3012203203021 its reverse (1203023022103), we get a palindrome (4215226225124).

The spelling of 3012203203021 in words is "three trillion, twelve billion, two hundred three million, two hundred three thousand, twenty-one".