1000320312 has 16 divisors (see below), whose sum is σ = 2500800840. Its totient is φ = 333440096.

The previous prime is 1000320283. The next prime is 1000320331. The reversal of 1000320312 is 2130230001.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 20839983 + ... + 20840030.

Almost surely, 2^1000320312 is an apocalyptic number.

1000320312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000320312 is an abundant number, since it is smaller than the sum of its proper divisors (1500480528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000320312 is a wasteful number, since it uses less digits than its factorization.

1000320312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41680022 (or 41680018 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1000320312 is about 31627.8407735969. The cubic root of 1000320312 is about 1000.1067592687.

Adding to 1000320312 its reverse (2130230001), we get a palindrome (3130550313).

The spelling of 1000320312 in words is "one billion, three hundred twenty thousand, three hundred twelve".