1001023044444 has 24 divisors (see below), whose sum is σ = 2595244930320. Its totient is φ = 333674348112.

The previous prime is 1001023044443. The next prime is 1001023044479. The reversal of 1001023044444 is 4444403201001.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001023044443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4634365839 + ... + 4634366054.

It is an arithmetic number, because the mean of its divisors is an integer number (108135205430).

Almost surely, 2^{1001023044444} is an apocalyptic number.

It is an amenable number.

1001023044444 is an abundant number, since it is smaller than the sum of its proper divisors (1594221885876).

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

1001023044444 is a wasteful number, since it uses less digits than its factorization.

1001023044444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9268731906 (or 9268731898 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

Adding to 1001023044444 its reverse (4444403201001), we get a palindrome (5445426245445).

The spelling of 1001023044444 in words is "one trillion, one billion, twenty-three million, forty-four thousand, four hundred forty-four".