30313219987 has 2 divisors, whose sum is σ = 30313219988. Its totient is φ = 30313219986.

The previous prime is 30313219943. The next prime is 30313220011. The reversal of 30313219987 is 78991231303.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30313219987 - 2²³ = 30304831379 is a prime.

It is not a weakly prime, because it can be changed into another prime (30313219487) 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, 15156609993 + 15156609994.

It is an arithmetic number, because the mean of its divisors is an integer number (15156609994).

Almost surely, 2^30313219987 is an apocalyptic number.

30313219987 is a deficient number, since it is larger than the sum of its proper divisors (1).

30313219987 is an equidigital number, since it uses as much as digits as its factorization.

30313219987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 46.

The spelling of 30313219987 in words is "thirty billion, three hundred thirteen million, two hundred nineteen thousand, nine hundred eighty-seven".