30305122450987 has 2 divisors, whose sum is σ = 30305122450988. Its totient is φ = 30305122450986.

The previous prime is 30305122450973. The next prime is 30305122451033. The reversal of 30305122450987 is 78905422150303.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30305122450987 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30305122450987.

It is not a weakly prime, because it can be changed into another prime (30305122450387) 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, 15152561225493 + 15152561225494.

It is an arithmetic number, because the mean of its divisors is an integer number (15152561225494).

Almost surely, 2^{30305122450987} is an apocalyptic number.

30305122450987 is a deficient number, since it is larger than the sum of its proper divisors (1).

30305122450987 is an equidigital number, since it uses as much as digits as its factorization.

30305122450987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1814400, while the sum is 49.

The spelling of 30305122450987 in words is "thirty trillion, three hundred five billion, one hundred twenty-two million, four hundred fifty thousand, nine hundred eighty-seven".