1003103041321 has 4 divisors (see below), whose sum is σ = 1014373862100. Its totient is φ = 991832220544.

The previous prime is 1003103041249. The next prime is 1003103041327. The reversal of 1003103041321 is 1231403013001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 580551039721 + 422552001600 = 761939^2 + 650040^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003103041321 - 2¹⁹ = 1003102517033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003103041327) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5635410256 + ... + 5635410433.

It is an arithmetic number, because the mean of its divisors is an integer number (253593465525).

Almost surely, 2^{1003103041321} is an apocalyptic number.

It is an amenable number.

1003103041321 is a deficient number, since it is larger than the sum of its proper divisors (11270820779).

1003103041321 is an equidigital number, since it uses as much as digits as its factorization.

1003103041321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11270820778.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1003103041321 its reverse (1231403013001), we get a palindrome (2234506054322).

The spelling of 1003103041321 in words is "one trillion, three billion, one hundred three million, forty-one thousand, three hundred twenty-one".