30420247087 has 2 divisors, whose sum is σ = 30420247088. Its totient is φ = 30420247086.

The previous prime is 30420247079. The next prime is 30420247111. The reversal of 30420247087 is 78074202403.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30420247087 - 2³ = 30420247079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30420247007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210123543 + 15210123544.

It is an arithmetic number, because the mean of its divisors is an integer number (15210123544).

Almost surely, 2^30420247087 is an apocalyptic number.

30420247087 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420247087 is an equidigital number, since it uses as much as digits as its factorization.

30420247087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 37.

The spelling of 30420247087 in words is "thirty billion, four hundred twenty million, two hundred forty-seven thousand, eighty-seven".