30974843420161 has 2 divisors, whose sum is σ = 30974843420162. Its totient is φ = 30974843420160.

The previous prime is 30974843420083. The next prime is 30974843420173. The reversal of 30974843420161 is 16102434847903.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19156649602561 + 11818193817600 = 4376831^2 + 3437760^2 .

It is a cyclic number.

It is not a de Polignac number, because 30974843420161 - 2¹⁹ = 30974842895873 is a prime.

It is a super-3 number, since 3×30974843420161³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30974843420099 and 30974843420108.

It is not a weakly prime, because it can be changed into another prime (30974843420461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15487421710080 + 15487421710081.

It is an arithmetic number, because the mean of its divisors is an integer number (15487421710081).

Almost surely, 2^{30974843420161} is an apocalyptic number.

It is an amenable number.

30974843420161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30974843420161 is an equidigital number, since it uses as much as digits as its factorization.

30974843420161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3483648, while the sum is 52.

The spelling of 30974843420161 in words is "thirty trillion, nine hundred seventy-four billion, eight hundred forty-three million, four hundred twenty thousand, one hundred sixty-one".