1304203211 has 2 divisors, whose sum is σ = 1304203212. Its totient is φ = 1304203210.

The previous prime is 1304203207. The next prime is 1304203213. The reversal of 1304203211 is 1123024031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1304203211 - 2² = 1304203207 is a prime.

Together with 1304203213, it forms a pair of twin primes.

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 1304203211.

It is not a weakly prime, because it can be changed into another prime (1304203213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 652101605 + 652101606.

It is an arithmetic number, because the mean of its divisors is an integer number (652101606).

Almost surely, 2^1304203211 is an apocalyptic number.

1304203211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1304203211 is an equidigital number, since it uses as much as digits as its factorization.

1304203211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1304203211 is about 36113.7537650131. The cubic root of 1304203211 is about 1092.5678624016.

Adding to 1304203211 its reverse (1123024031), we get a palindrome (2427227242).

The spelling of 1304203211 in words is "one billion, three hundred four million, two hundred three thousand, two hundred eleven".