30503221521007 has 2 divisors, whose sum is σ = 30503221521008. Its totient is φ = 30503221521006.

The previous prime is 30503221520977. The next prime is 30503221521023. The reversal of 30503221521007 is 70012512230503.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30503221521007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30503221521007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30503221551007) 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, 15251610760503 + 15251610760504.

It is an arithmetic number, because the mean of its divisors is an integer number (15251610760504).

Almost surely, 2^{30503221521007} is an apocalyptic number.

30503221521007 is a deficient number, since it is larger than the sum of its proper divisors (1).

30503221521007 is an equidigital number, since it uses as much as digits as its factorization.

30503221521007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 31.

The spelling of 30503221521007 in words is "thirty trillion, five hundred three billion, two hundred twenty-one million, five hundred twenty-one thousand, seven".