30111121309 has 2 divisors, whose sum is σ = 30111121310. Its totient is φ = 30111121308.

The previous prime is 30111121297. The next prime is 30111121333. The reversal of 30111121309 is 90312111103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28833058809 + 1278062500 = 169803^2 + 35750^2 .

It is a cyclic number.

It is not a de Polignac number, because 30111121309 - 2⁹ = 30111120797 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30111121309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30111121349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15055560654 + 15055560655.

It is an arithmetic number, because the mean of its divisors is an integer number (15055560655).

Almost surely, 2^30111121309 is an apocalyptic number.

It is an amenable number.

30111121309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30111121309 is an equidigital number, since it uses as much as digits as its factorization.

30111121309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 22.

The spelling of 30111121309 in words is "thirty billion, one hundred eleven million, one hundred twenty-one thousand, three hundred nine".