1003103130331 has 2 divisors, whose sum is σ = 1003103130332. Its totient is φ = 1003103130330.

The previous prime is 1003103130319. The next prime is 1003103130361. The reversal of 1003103130331 is 1330313013001.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1003103130331 - 2⁷ = 1003103130203 is a prime.

It is a super-2 number, since 2×1003103130331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1003103130299 and 1003103130308.

It is not a weakly prime, because it can be changed into another prime (1003103130311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501551565165 + 501551565166.

It is an arithmetic number, because the mean of its divisors is an integer number (501551565166).

Almost surely, 2^{1003103130331} is an apocalyptic number.

1003103130331 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003103130331 is an equidigital number, since it uses as much as digits as its factorization.

1003103130331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 1003103130331 its reverse (1330313013001), we get a palindrome (2333416143332).

The spelling of 1003103130331 in words is "one trillion, three billion, one hundred three million, one hundred thirty thousand, three hundred thirty-one".