3020331421 has 2 divisors, whose sum is σ = 3020331422. Its totient is φ = 3020331420.

The previous prime is 3020331403. The next prime is 3020331451. The reversal of 3020331421 is 1241330203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2745236025 + 275095396 = 52395^2 + 16586^2 .

It is an emirp because it is prime and its reverse (1241330203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3020331421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3020331451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1510165710 + 1510165711.

It is an arithmetic number, because the mean of its divisors is an integer number (1510165711).

Almost surely, 2^3020331421 is an apocalyptic number.

It is an amenable number.

3020331421 is a deficient number, since it is larger than the sum of its proper divisors (1).

3020331421 is an equidigital number, since it uses as much as digits as its factorization.

3020331421 is an odious number, because the sum of its binary digits is odd.

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

The square root of 3020331421 is about 54957.5419846994. The cubic root of 3020331421 is about 1445.5003469180.

Adding to 3020331421 its reverse (1241330203), we get a palindrome (4261661624).

The spelling of 3020331421 in words is "three billion, twenty million, three hundred thirty-one thousand, four hundred twenty-one".