1003221403145 has 16 divisors (see below), whose sum is σ = 1296539706000. Its totient is φ = 740801009664.

The previous prime is 1003221403117. The next prime is 1003221403147. The reversal of 1003221403145 is 5413041223001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1834922896 + 1001386480249 = 42836^2 + 1000693^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003221403145 - 2⁸ = 1003221402889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1003221403147) 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 in 15 ways as a sum of consecutive naturals, for example, 850277 + ... + 1652093.

It is an arithmetic number, because the mean of its divisors is an integer number (81033731625).

Almost surely, 2^{1003221403145} is an apocalyptic number.

It is an amenable number.

1003221403145 is a deficient number, since it is larger than the sum of its proper divisors (293318302855).

1003221403145 is a wasteful number, since it uses less digits than its factorization.

1003221403145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 821084.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 1003221403145 its reverse (5413041223001), we get a palindrome (6416262626146).

The spelling of 1003221403145 in words is "one trillion, three billion, two hundred twenty-one million, four hundred three thousand, one hundred forty-five".