3440312042021 has 2 divisors, whose sum is σ = 3440312042022. Its totient is φ = 3440312042020.

The previous prime is 3440312041961. The next prime is 3440312042029. The reversal of 3440312042021 is 1202402130443.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2891312548996 + 548999493025 = 1700386^2 + 740945^2 .

It is an emirp because it is prime and its reverse (1202402130443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3440312042021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3440312042029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1720156021010 + 1720156021011.

It is an arithmetic number, because the mean of its divisors is an integer number (1720156021011).

Almost surely, 2^{3440312042021} is an apocalyptic number.

It is an amenable number.

3440312042021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3440312042021 is an equidigital number, since it uses as much as digits as its factorization.

3440312042021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 3440312042021 its reverse (1202402130443), we get a palindrome (4642714172464).

The spelling of 3440312042021 in words is "three trillion, four hundred forty billion, three hundred twelve million, forty-two thousand, twenty-one".