1001012020984 has 16 divisors (see below), whose sum is σ = 1941618144600. Its totient is φ = 483247182432.

The previous prime is 1001012020979. The next prime is 1001012020993. The reversal of 1001012020984 is 4890202101001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2157353262 + ... + 2157353725.

Almost surely, 2^{1001012020984} is an apocalyptic number.

It is an amenable number.

1001012020984 is a deficient number, since it is larger than the sum of its proper divisors (940606123616).

1001012020984 is a wasteful number, since it uses less digits than its factorization.

1001012020984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4314707022 (or 4314707018 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 28.

Adding to 1001012020984 its reverse (4890202101001), we get a palindrome (5891214121985).

The spelling of 1001012020984 in words is "one trillion, one billion, twelve million, twenty thousand, nine hundred eighty-four".