303240420401 has 2 divisors, whose sum is σ = 303240420402. Its totient is φ = 303240420400.

The previous prime is 303240420389. The next prime is 303240420479. The reversal of 303240420401 is 104024042303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 276360490000 + 26879930401 = 525700^2 + 163951^2 .

It is an emirp because it is prime and its reverse (104024042303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 303240420401 - 2²⁶ = 303173311537 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (303240420491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151620210200 + 151620210201.

It is an arithmetic number, because the mean of its divisors is an integer number (151620210201).

Almost surely, 2^303240420401 is an apocalyptic number.

It is an amenable number.

303240420401 is a deficient number, since it is larger than the sum of its proper divisors (1).

303240420401 is an equidigital number, since it uses as much as digits as its factorization.

303240420401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 303240420401 its reverse (104024042303), we get a palindrome (407264462704).

The spelling of 303240420401 in words is "three hundred three billion, two hundred forty million, four hundred twenty thousand, four hundred one".