30012123011309 has 2 divisors, whose sum is σ = 30012123011310. Its totient is φ = 30012123011308.

The previous prime is 30012123011303. The next prime is 30012123011359. The reversal of 30012123011309 is 90311032121003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30011529845284 + 593166025 = 5478278^2 + 24355^2 .

It is a cyclic number.

It is not a de Polignac number, because 30012123011309 - 2⁸ = 30012123011053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30012123011303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15006061505654 + 15006061505655.

It is an arithmetic number, because the mean of its divisors is an integer number (15006061505655).

Almost surely, 2^{30012123011309} is an apocalyptic number.

It is an amenable number.

30012123011309 is a deficient number, since it is larger than the sum of its proper divisors (1).

30012123011309 is an equidigital number, since it uses as much as digits as its factorization.

30012123011309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 26.

The spelling of 30012123011309 in words is "thirty trillion, twelve billion, one hundred twenty-three million, eleven thousand, three hundred nine".