1331111032103 has 2 divisors, whose sum is σ = 1331111032104. Its totient is φ = 1331111032102.

The previous prime is 1331111032073. The next prime is 1331111032109. The reversal of 1331111032103 is 3012301111331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331111032103 - 2¹⁶ = 1331110966567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331111032109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665555516051 + 665555516052.

It is an arithmetic number, because the mean of its divisors is an integer number (665555516052).

Almost surely, 2^{1331111032103} is an apocalyptic number.

1331111032103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331111032103 is an equidigital number, since it uses as much as digits as its factorization.

1331111032103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1331111032103 its reverse (3012301111331), we get a palindrome (4343412143434).

The spelling of 1331111032103 in words is "one trillion, three hundred thirty-one billion, one hundred eleven million, thirty-two thousand, one hundred three".