1303304381 has 2 divisors, whose sum is σ = 1303304382. Its totient is φ = 1303304380.

The previous prime is 1303304377. The next prime is 1303304419. The reversal of 1303304381 is 1834033031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1135083481 + 168220900 = 33691^2 + 12970^2 .

It is a cyclic number.

It is not a de Polignac number, because 1303304381 - 2² = 1303304377 is a prime.

It is a super-2 number, since 2×1303304381² = 3397204619067586322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1303304381.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1303304081) 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, 651652190 + 651652191.

It is an arithmetic number, because the mean of its divisors is an integer number (651652191).

Almost surely, 2^1303304381 is an apocalyptic number.

It is an amenable number.

1303304381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1303304381 is an equidigital number, since it uses as much as digits as its factorization.

1303304381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The square root of 1303304381 is about 36101.3071923996. The cubic root of 1303304381 is about 1092.3168129617.

The spelling of 1303304381 in words is "one billion, three hundred three million, three hundred four thousand, three hundred eighty-one".