1003221500345 has 8 divisors (see below), whose sum is σ = 1207974559176. Its totient is φ = 799838027776.

The previous prime is 1003221500299. The next prime is 1003221500357. The reversal of 1003221500345 is 5430051223001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 103804462969 + 899417037376 = 322187^2 + 948376^2 .

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 1003221500345 - 2²⁸ = 1002953064889 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 342394952 + ... + 342397881.

It is an arithmetic number, because the mean of its divisors is an integer number (150996819897).

Almost surely, 2^{1003221500345} is an apocalyptic number.

It is an amenable number.

1003221500345 is a deficient number, since it is larger than the sum of its proper divisors (204753058831).

1003221500345 is an equidigital number, since it uses as much as digits as its factorization.

1003221500345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684793131.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 1003221500345 its reverse (5430051223001), we get a palindrome (6433272723346).

The spelling of 1003221500345 in words is "one trillion, three billion, two hundred twenty-one million, five hundred thousand, three hundred forty-five".