30020300977 has 2 divisors, whose sum is σ = 30020300978. Its totient is φ = 30020300976.

The previous prime is 30020300963. The next prime is 30020301013. The reversal of 30020300977 is 77900302003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29913777936 + 106523041 = 172956^2 + 10321^2 .

It is an emirp because it is prime and its reverse (77900302003) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30020300977 is a prime.

It is not a weakly prime, because it can be changed into another prime (30020300477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15010150488 + 15010150489.

It is an arithmetic number, because the mean of its divisors is an integer number (15010150489).

Almost surely, 2^30020300977 is an apocalyptic number.

It is an amenable number.

30020300977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30020300977 is an equidigital number, since it uses as much as digits as its factorization.

30020300977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 31.

The spelling of 30020300977 in words is "thirty billion, twenty million, three hundred thousand, nine hundred seventy-seven".