1056803317 has 4 divisors (see below), whose sum is σ = 1118968236. Its totient is φ = 994638400.

The previous prime is 1056803309. The next prime is 1056803323. The reversal of 1056803317 is 7133086501.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 763914321 + 292888996 = 27639^2 + 17114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1056803317 - 2³ = 1056803309 is a prime.

It is a super-2 number, since 2×1056803317² = 2233666501644404978, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1056803327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31082434 + ... + 31082467.

It is an arithmetic number, because the mean of its divisors is an integer number (279742059).

Almost surely, 2^1056803317 is an apocalyptic number.

1056803317 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1056803317 is a deficient number, since it is larger than the sum of its proper divisors (62164919).

1056803317 is an equidigital number, since it uses as much as digits as its factorization.

1056803317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62164918.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 1056803317 is about 32508.5114546944. The cubic root of 1056803317 is about 1018.5868284112.

Adding to 1056803317 its reverse (7133086501), we get a palindrome (8189889818).

The spelling of 1056803317 in words is "one billion, fifty-six million, eight hundred three thousand, three hundred seventeen".