1005043021144 has 8 divisors (see below), whose sum is σ = 1884455664660. Its totient is φ = 502521510568.

The previous prime is 1005043021141. The next prime is 1005043021153. The reversal of 1005043021144 is 4411203405001.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×1005043021144² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1005043021141) by changing a digit.

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 as a sum of consecutive naturals, namely, 62815188814 + ... + 62815188829.

Almost surely, 2^{1005043021144} is an apocalyptic number.

It is an amenable number.

1005043021144 is a deficient number, since it is larger than the sum of its proper divisors (879412643516).

1005043021144 is a wasteful number, since it uses less digits than its factorization.

1005043021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125630377649 (or 125630377645 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 1005043021144 its reverse (4411203405001), we get a palindrome (5416246426145).

The spelling of 1005043021144 in words is "one trillion, five billion, forty-three million, twenty-one thousand, one hundred forty-four".