1044021353503 has 8 divisors (see below), whose sum is σ = 1089589362048. Its totient is φ = 998467992984.

The previous prime is 1044021353467. The next prime is 1044021353513. The reversal of 1044021353503 is 3053531204401.

1044021353503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1044021353503 - 2²¹ = 1044019256351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1044021353513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3516225 + ... + 3801562.

It is an arithmetic number, because the mean of its divisors is an integer number (136198670256).

Almost surely, 2^{1044021353503} is an apocalyptic number.

1044021353503 is a deficient number, since it is larger than the sum of its proper divisors (45568008545).

1044021353503 is an equidigital number, since it uses as much as digits as its factorization.

1044021353503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7324013.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 1044021353503 its reverse (3053531204401), we get a palindrome (4097552557904).

The spelling of 1044021353503 in words is "one trillion, forty-four billion, twenty-one million, three hundred fifty-three thousand, five hundred three".