30011211977 has 2 divisors, whose sum is σ = 30011211978. Its totient is φ = 30011211976.

The previous prime is 30011211973. The next prime is 30011212027. The reversal of 30011211977 is 77911211003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18386275216 + 11624936761 = 135596^2 + 107819^2 .

It is an emirp because it is prime and its reverse (77911211003) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30011211977 - 2² = 30011211973 is a prime.

It is not a weakly prime, because it can be changed into another prime (30011211973) 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, 15005605988 + 15005605989.

It is an arithmetic number, because the mean of its divisors is an integer number (15005605989).

Almost surely, 2^30011211977 is an apocalyptic number.

It is an amenable number.

30011211977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30011211977 is an equidigital number, since it uses as much as digits as its factorization.

30011211977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2646, while the sum is 32.

The spelling of 30011211977 in words is "thirty billion, eleven million, two hundred eleven thousand, nine hundred seventy-seven".