1003428845281 has 32 divisors (see below), whose sum is σ = 1075353408000. Its totient is φ = 936267446016.

The previous prime is 1003428845273. The next prime is 1003428845339. The reversal of 1003428845281 is 1825488243001.

It is not a de Polignac number, because 1003428845281 - 2³ = 1003428845273 is a prime.

It is a super-2 number, since 2×1003428845281² (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 (1003428845381) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 322748155 + ... + 322751263.

It is an arithmetic number, because the mean of its divisors is an integer number (33604794000).

Almost surely, 2^{1003428845281} is an apocalyptic number.

It is an amenable number.

1003428845281 is a deficient number, since it is larger than the sum of its proper divisors (71924562719).

1003428845281 is an equidigital number, since it uses as much as digits as its factorization.

1003428845281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706 (or 3672 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 46.

The spelling of 1003428845281 in words is "one trillion, three billion, four hundred twenty-eight million, eight hundred forty-five thousand, two hundred eighty-one".