30221180939 has 2 divisors, whose sum is σ = 30221180940. Its totient is φ = 30221180938.

The previous prime is 30221180929. The next prime is 30221180989. The reversal of 30221180939 is 93908112203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221180939 is a prime.

It is not a weakly prime, because it can be changed into another prime (30221180929) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110590469 + 15110590470.

It is an arithmetic number, because the mean of its divisors is an integer number (15110590470).

Almost surely, 2^30221180939 is an apocalyptic number.

30221180939 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221180939 is an equidigital number, since it uses as much as digits as its factorization.

30221180939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 30221180939 in words is "thirty billion, two hundred twenty-one million, one hundred eighty thousand, nine hundred thirty-nine".