30312404021489 has 2 divisors, whose sum is σ = 30312404021490. Its totient is φ = 30312404021488.

The previous prime is 30312404021461. The next prime is 30312404021503. The reversal of 30312404021489 is 98412040421303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30143306245264 + 169097776225 = 5490292^2 + 411215^2 .

It is a cyclic number.

It is not a de Polignac number, because 30312404021489 - 2¹² = 30312404017393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (30312404521489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15156202010744 + 15156202010745.

It is an arithmetic number, because the mean of its divisors is an integer number (15156202010745).

Almost surely, 2^{30312404021489} is an apocalyptic number.

It is an amenable number.

30312404021489 is a deficient number, since it is larger than the sum of its proper divisors (1).

30312404021489 is an equidigital number, since it uses as much as digits as its factorization.

30312404021489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 165888, while the sum is 41.

The spelling of 30312404021489 in words is "thirty trillion, three hundred twelve billion, four hundred four million, twenty-one thousand, four hundred eighty-nine".