30338840057 has 2 divisors, whose sum is σ = 30338840058. Its totient is φ = 30338840056.

The previous prime is 30338840053. The next prime is 30338840093. The reversal of 30338840057 is 75004883303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30045368896 + 293471161 = 173336^2 + 17131^2 .

It is a cyclic number.

It is not a de Polignac number, because 30338840057 - 2² = 30338840053 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30338839996 and 30338840023.

It is not a weakly prime, because it can be changed into another prime (30338840053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15169420028 + 15169420029.

It is an arithmetic number, because the mean of its divisors is an integer number (15169420029).

Almost surely, 2^30338840057 is an apocalyptic number.

It is an amenable number.

30338840057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30338840057 is an equidigital number, since it uses as much as digits as its factorization.

30338840057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 41.

The spelling of 30338840057 in words is "thirty billion, three hundred thirty-eight million, eight hundred forty thousand, fifty-seven".