303201421 has 8 divisors (see below), whose sum is σ = 321442304. Its totient is φ = 285489360.

The previous prime is 303201419. The next prime is 303201439. The reversal of 303201421 is 124102303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 303201421 - 2¹ = 303201419 is a prime.

It is a super-2 number, since 2×303201421² = 183862203392838482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 303201395 and 303201404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303201461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131025 + ... + 133318.

It is an arithmetic number, because the mean of its divisors is an integer number (40180288).

Almost surely, 2^303201421 is an apocalyptic number.

303201421 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

303201421 is a deficient number, since it is larger than the sum of its proper divisors (18240883).

303201421 is a wasteful number, since it uses less digits than its factorization.

303201421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264411.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 303201421 is about 17412.6798913895. The cubic root of 303201421 is about 671.8057924777.

Adding to 303201421 its reverse (124102303), we get a palindrome (427303724).

The spelling of 303201421 in words is "three hundred three million, two hundred one thousand, four hundred twenty-one".