1003110231161 has 2 divisors, whose sum is σ = 1003110231162. Its totient is φ = 1003110231160.

The previous prime is 1003110231119. The next prime is 1003110231163. The reversal of 1003110231161 is 1611320113001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 793291267561 + 209818963600 = 890669^2 + 458060^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003110231161 - 2²⁶ = 1003043122297 is a prime.

Together with 1003110231163, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1003110231163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501555115580 + 501555115581.

It is an arithmetic number, because the mean of its divisors is an integer number (501555115581).

Almost surely, 2^{1003110231161} is an apocalyptic number.

It is an amenable number.

1003110231161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1003110231161 is an equidigital number, since it uses as much as digits as its factorization.

1003110231161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1003110231161 its reverse (1611320113001), we get a palindrome (2614430344162).

The spelling of 1003110231161 in words is "one trillion, three billion, one hundred ten million, two hundred thirty-one thousand, one hundred sixty-one".