1100001001044 has 72 divisors (see below), whose sum is σ = 2828903292544. Its totient is φ = 332425209600.

The previous prime is 1100001000953. The next prime is 1100001001061. The reversal of 1100001001044 is 4401001000011.

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 (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 499237 + ... + 1565004.

Almost surely, 2^{1100001001044} is an apocalyptic number.

It is an amenable number.

1100001001044 is an abundant number, since it is smaller than the sum of its proper divisors (1728902291500).

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

1100001001044 is a wasteful number, since it uses less digits than its factorization.

1100001001044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2064637 (or 2064624 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1100001001044 its reverse (4401001000011), we get a palindrome (5501002001055).

The spelling of 1100001001044 in words is "one trillion, one hundred billion, one million, one thousand, forty-four".