30420241 has 2 divisors, whose sum is σ = 30420242. Its totient is φ = 30420240.

The previous prime is 30420239. The next prime is 30420277. The reversal of 30420241 is 14202403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18309841 + 12110400 = 4279^2 + 3480^2 .

It is an emirp because it is prime and its reverse (14202403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30420241 - 2¹ = 30420239 is a prime.

Together with 30420239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30420041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15210120 + 15210121.

It is an arithmetic number, because the mean of its divisors is an integer number (15210121).

Almost surely, 2^30420241 is an apocalyptic number.

It is an amenable number.

30420241 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420241 is an equidigital number, since it uses as much as digits as its factorization.

30420241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 30420241 is about 5515.4547409982. The cubic root of 30420241 is about 312.1674020839.

Adding to 30420241 its reverse (14202403), we get a palindrome (44622644).

The spelling of 30420241 in words is "thirty million, four hundred twenty thousand, two hundred forty-one".