1021144004003 has 4 divisors (see below), whose sum is σ = 1056355866240. Its totient is φ = 985932141768.

The previous prime is 1021144003931. The next prime is 1021144004033. The reversal of 1021144004003 is 3004004411201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021144004003 - 2¹⁶ = 1021143938467 is a prime.

It is a super-2 number, since 2×1021144004003² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021144004033) 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 3 ways as a sum of consecutive naturals, for example, 17605931075 + ... + 17605931132.

It is an arithmetic number, because the mean of its divisors is an integer number (264088966560).

Almost surely, 2^{1021144004003} is an apocalyptic number.

1021144004003 is a deficient number, since it is larger than the sum of its proper divisors (35211862237).

1021144004003 is an equidigital number, since it uses as much as digits as its factorization.

1021144004003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35211862236.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 1021144004003 its reverse (3004004411201), we get a palindrome (4025148415204).

The spelling of 1021144004003 in words is "one trillion, twenty-one billion, one hundred forty-four million, four thousand, three".