3021240640205 has 16 divisors (see below), whose sum is σ = 3675323253744. Its totient is φ = 2383772590080.

The previous prime is 3021240640189. The next prime is 3021240640207. The reversal of 3021240640205 is 5020460421203.

It can be written as a sum of positive squares in 8 ways, for example, as 4578822889 + 3016661817316 = 67667^2 + 1736854^2 .

It is not a de Polignac number, because 3021240640205 - 2⁴ = 3021240640189 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 (3021240640207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8200517 + ... + 8561013.

It is an arithmetic number, because the mean of its divisors is an integer number (229707703359).

Almost surely, 2^{3021240640205} is an apocalyptic number.

It is an amenable number.

3021240640205 is a deficient number, since it is larger than the sum of its proper divisors (654082613539).

3021240640205 is a wasteful number, since it uses less digits than its factorization.

3021240640205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383536.

The product of its (nonzero) digits is 11520, while the sum is 29.

The spelling of 3021240640205 in words is "three trillion, twenty-one billion, two hundred forty million, six hundred forty thousand, two hundred five".