30012121020109 has 2 divisors, whose sum is σ = 30012121020110. Its totient is φ = 30012121020108.

The previous prime is 30012121019971. The next prime is 30012121020139. The reversal of 30012121020109 is 90102012121003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27065329929225 + 2946791090884 = 5202435^2 + 1716622^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012121020109 - 2¹⁵ = 30012120987341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30012121020109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30012121020139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006060510054 + 15006060510055.

It is an arithmetic number, because the mean of its divisors is an integer number (15006060510055).

Almost surely, 2^{30012121020109} is an apocalyptic number.

It is an amenable number.

30012121020109 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012121020109 is an equidigital number, since it uses as much as digits as its factorization.

30012121020109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 22.

It can be divided in two parts, 30012 and 121020109, that added together give a palindrome (121050121).

The spelling of 30012121020109 in words is "thirty trillion, twelve billion, one hundred twenty-one million, twenty thousand, one hundred nine".