305120201 has 4 divisors (see below), whose sum is σ = 308796432. Its totient is φ = 301443972.

The previous prime is 305120177. The next prime is 305120317. The reversal of 305120201 is 102021503.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 305120201 - 2¹⁴ = 305103817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (305122201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1837991 + ... + 1838156.

It is an arithmetic number, because the mean of its divisors is an integer number (77199108).

Almost surely, 2^305120201 is an apocalyptic number.

It is an amenable number.

305120201 is a deficient number, since it is larger than the sum of its proper divisors (3676231).

305120201 is an equidigital number, since it uses as much as digits as its factorization.

305120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3676230.

The product of its (nonzero) digits is 60, while the sum is 14.

The square root of 305120201 is about 17467.6902021990. The cubic root of 305120201 is about 673.2199655284.

Adding to 305120201 its reverse (102021503), we get a palindrome (407141704).

The spelling of 305120201 in words is "three hundred five million, one hundred twenty thousand, two hundred one".