1204300421 has 4 divisors (see below), whose sum is σ = 1233673644. Its totient is φ = 1174927200.

The previous prime is 1204300403. The next prime is 1204300453. The reversal of 1204300421 is 1240034021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 443313025 + 760987396 = 21055^2 + 27586^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1204300421 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1204300421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204300481) 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 3 ways as a sum of consecutive naturals, for example, 14686550 + ... + 14686631.

It is an arithmetic number, because the mean of its divisors is an integer number (308418411).

Almost surely, 2^1204300421 is an apocalyptic number.

It is an amenable number.

1204300421 is a deficient number, since it is larger than the sum of its proper divisors (29373223).

1204300421 is an equidigital number, since it uses as much as digits as its factorization.

1204300421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29373222.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1204300421 is about 34703.0318704288. The cubic root of 1204300421 is about 1063.9264667015.

Adding to 1204300421 its reverse (1240034021), we get a palindrome (2444334442).

The spelling of 1204300421 in words is "one billion, two hundred four million, three hundred thousand, four hundred twenty-one".