1000313403 has 16 divisors (see below), whose sum is σ = 1352614560. Its totient is φ = 657506304.

The previous prime is 1000313381. The next prime is 1000313407. The reversal of 1000313403 is 3043130001.

It is not a de Polignac number, because 1000313403 - 2²⁴ = 983536187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000313407) 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 in 15 ways as a sum of consecutive naturals, for example, 57783 + ... + 73071.

It is an arithmetic number, because the mean of its divisors is an integer number (84538410).

Almost surely, 2^1000313403 is an apocalyptic number.

1000313403 is a deficient number, since it is larger than the sum of its proper divisors (352301157).

1000313403 is a wasteful number, since it uses less digits than its factorization.

1000313403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15598.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1000313403 is about 31627.7315500179. The cubic root of 1000313403 is about 1000.1044567551.

Adding to 1000313403 its reverse (3043130001), we get a palindrome (4043443404).

The spelling of 1000313403 in words is "one billion, three hundred thirteen thousand, four hundred three".