1001318812 has 24 divisors (see below), whose sum is σ = 1930991216. Its totient is φ = 451398528.

The previous prime is 1001318809. The next prime is 1001318831. The reversal of 1001318812 is 2188131001.

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 7 ways as a sum of consecutive naturals, for example, 221673 + ... + 226144.

Almost surely, 2^1001318812 is an apocalyptic number.

It is an amenable number.

1001318812 is a deficient number, since it is larger than the sum of its proper divisors (929672404).

1001318812 is a wasteful number, since it uses less digits than its factorization.

1001318812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 447877 (or 447875 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 25.

The square root of 1001318812 is about 31643.6219797924. The cubic root of 1001318812 is about 1000.4394108898.

Adding to 1001318812 its reverse (2188131001), we get a palindrome (3189449813).

The spelling of 1001318812 in words is "one billion, one million, three hundred eighteen thousand, eight hundred twelve".