1303313444 has 12 divisors (see below), whose sum is σ = 2294792304. Its totient is φ = 647658504.

The previous prime is 1303313443. The next prime is 1303313467. The reversal of 1303313444 is 4443133031.

It is a happy number.

It is a super-2 number, since 2×1303313444² = 3397251866622282272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1303313441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 998822 + ... + 1000125.

It is an arithmetic number, because the mean of its divisors is an integer number (191232692).

Almost surely, 2^1303313444 is an apocalyptic number.

It is an amenable number.

1303313444 is a deficient number, since it is larger than the sum of its proper divisors (991478860).

1303313444 is a wasteful number, since it uses less digits than its factorization.

1303313444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999114 (or 1999112 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 26.

The square root of 1303313444 is about 36101.4327139519. The cubic root of 1303313444 is about 1092.3193448963.

Adding to 1303313444 its reverse (4443133031), we get a palindrome (5746446475).

The spelling of 1303313444 in words is "one billion, three hundred three million, three hundred thirteen thousand, four hundred forty-four".