30420001 has 2 divisors, whose sum is σ = 30420002. Its totient is φ = 30420000.

The previous prime is 30419981. The next prime is 30420023. The reversal of 30420001 is 10002403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26790976 + 3629025 = 5176^2 + 1905^2 .

It is an emirp because it is prime and its reverse (10002403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30420001 - 2¹¹ = 30417953 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 30420001.

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, 15210000 + 15210001.

It is an arithmetic number, because the mean of its divisors is an integer number (15210001).

Almost surely, 2^30420001 is an apocalyptic number.

It is an amenable number.

30420001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30420001 is an equidigital number, since it uses as much as digits as its factorization.

30420001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 30420001 is about 5515.4329839098. The cubic root of 30420001 is about 312.1665811351.

Adding to 30420001 its reverse (10002403), we get a palindrome (40422404).

The spelling of 30420001 in words is "thirty million, four hundred twenty thousand, one".