1263313303 has 8 divisors (see below), whose sum is σ = 1454808960. Its totient is φ = 1074573240.

The previous prime is 1263313277. The next prime is 1263313307. The reversal of 1263313303 is 3033133621.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1263313303 - 2¹³ = 1263305111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263313307) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 687913 + ... + 689746.

It is an arithmetic number, because the mean of its divisors is an integer number (181851120).

Almost surely, 2^1263313303 is an apocalyptic number.

1263313303 is a deficient number, since it is larger than the sum of its proper divisors (191495657).

1263313303 is a wasteful number, since it uses less digits than its factorization.

1263313303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1377797.

The product of its (nonzero) digits is 2916, while the sum is 25.

The square root of 1263313303 is about 35543.1189261719. The cubic root of 1263313303 is about 1081.0281997605.

Adding to 1263313303 its reverse (3033133621), we get a palindrome (4296446924).

The spelling of 1263313303 in words is "one billion, two hundred sixty-three million, three hundred thirteen thousand, three hundred three".