30212030389 has 2 divisors, whose sum is σ = 30212030390. Its totient is φ = 30212030388.

The previous prime is 30212030371. The next prime is 30212030393. The reversal of 30212030389 is 98303021203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22445133489 + 7766896900 = 149817^2 + 88130^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30212030389 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30212030389.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30212030339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15106015194 + 15106015195.

It is an arithmetic number, because the mean of its divisors is an integer number (15106015195).

Almost surely, 2^30212030389 is an apocalyptic number.

It is an amenable number.

30212030389 is a deficient number, since it is larger than the sum of its proper divisors (1).

30212030389 is an equidigital number, since it uses as much as digits as its factorization.

30212030389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 31.

The spelling of 30212030389 in words is "thirty billion, two hundred twelve million, thirty thousand, three hundred eighty-nine".