30021130309 has 2 divisors, whose sum is σ = 30021130310. Its totient is φ = 30021130308.

The previous prime is 30021130301. The next prime is 30021130361. The reversal of 30021130309 is 90303112003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29573680900 + 447449409 = 171970^2 + 21153^2 .

It is a cyclic number.

It is not a de Polignac number, because 30021130309 - 2³ = 30021130301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30021130309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30021130301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010565154 + 15010565155.

It is an arithmetic number, because the mean of its divisors is an integer number (15010565155).

Almost surely, 2^30021130309 is an apocalyptic number.

It is an amenable number.

30021130309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30021130309 is an equidigital number, since it uses as much as digits as its factorization.

30021130309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

It can be divided in two parts, 3002 and 1130309, that added together give a palindrome (1133311).

The spelling of 30021130309 in words is "thirty billion, twenty-one million, one hundred thirty thousand, three hundred nine".