1303221247 has 2 divisors, whose sum is σ = 1303221248. Its totient is φ = 1303221246.

The previous prime is 1303221223. The next prime is 1303221329. The reversal of 1303221247 is 7421223031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1303221247 - 2⁷ = 1303221119 is a prime.

It is a zygodrome in base 8.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303221347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651610623 + 651610624.

It is an arithmetic number, because the mean of its divisors is an integer number (651610624).

Almost surely, 2^1303221247 is an apocalyptic number.

1303221247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303221247 is an equidigital number, since it uses as much as digits as its factorization.

1303221247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 1303221247 is about 36100.1557752872. The cubic root of 1303221247 is about 1092.2935872292.

Adding to 1303221247 its reverse (7421223031), we get a palindrome (8724444278).

The spelling of 1303221247 in words is "one billion, three hundred three million, two hundred twenty-one thousand, two hundred forty-seven".