30303419981 has 2 divisors, whose sum is σ = 30303419982. Its totient is φ = 30303419980.

The previous prime is 30303419969. The next prime is 30303420001. The reversal of 30303419981 is 18991430303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28346773225 + 1956646756 = 168365^2 + 44234^2 .

It is a cyclic number.

It is not a de Polignac number, because 30303419981 - 2⁶ = 30303419917 is a prime.

It is a super-2 number, since 2×30303419981² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30303419911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15151709990 + 15151709991.

It is an arithmetic number, because the mean of its divisors is an integer number (15151709991).

Almost surely, 2^30303419981 is an apocalyptic number.

It is an amenable number.

30303419981 is a deficient number, since it is larger than the sum of its proper divisors (1).

30303419981 is an equidigital number, since it uses as much as digits as its factorization.

30303419981 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 30303419981 in words is "thirty billion, three hundred three million, four hundred nineteen thousand, nine hundred eighty-one".