1000312443 has 16 divisors (see below), whose sum is σ = 1595940640. Its totient is φ = 615576672.

The previous prime is 1000312409. The next prime is 1000312447. The reversal of 1000312443 is 3442130001.

It is not a de Polignac number, because 1000312443 - 2⁹ = 1000311931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000312447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1424596 + ... + 1425297.

It is an arithmetic number, because the mean of its divisors is an integer number (99746290).

Almost surely, 2^1000312443 is an apocalyptic number.

1000312443 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000312443 is a deficient number, since it is larger than the sum of its proper divisors (595628197).

1000312443 is a wasteful number, since it uses less digits than its factorization.

1000312443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2849915 (or 2849909 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1000312443 is about 31627.7163734595. The cubic root of 1000312443 is about 1000.1041368218.

Adding to 1000312443 its reverse (3442130001), we get a palindrome (4442442444).

The spelling of 1000312443 in words is "one billion, three hundred twelve thousand, four hundred forty-three".