1331119903109 has 2 divisors, whose sum is σ = 1331119903110. Its totient is φ = 1331119903108.

The previous prime is 1331119903049. The next prime is 1331119903171. The reversal of 1331119903109 is 9013099111331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1242567237025 + 88552666084 = 1114705^2 + 297578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331119903109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331119903409) 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, 665559951554 + 665559951555.

It is an arithmetic number, because the mean of its divisors is an integer number (665559951555).

Almost surely, 2^{1331119903109} is an apocalyptic number.

It is an amenable number.

1331119903109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331119903109 is an equidigital number, since it uses as much as digits as its factorization.

1331119903109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19683, while the sum is 41.

The spelling of 1331119903109 in words is "one trillion, three hundred thirty-one billion, one hundred nineteen million, nine hundred three thousand, one hundred nine".