30303321397 has 2 divisors, whose sum is σ = 30303321398. Its totient is φ = 30303321396.

The previous prime is 30303321371. The next prime is 30303321409. The reversal of 30303321397 is 79312330303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27964535076 + 2338786321 = 167226^2 + 48361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30303321397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30303321337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15151660698 + 15151660699.

It is an arithmetic number, because the mean of its divisors is an integer number (15151660699).

Almost surely, 2^30303321397 is an apocalyptic number.

It is an amenable number.

30303321397 is a deficient number, since it is larger than the sum of its proper divisors (1).

30303321397 is an equidigital number, since it uses as much as digits as its factorization.

30303321397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 34.

The spelling of 30303321397 in words is "thirty billion, three hundred three million, three hundred twenty-one thousand, three hundred ninety-seven".