1109553459013 has 2 divisors, whose sum is σ = 1109553459014. Its totient is φ = 1109553459012.

The previous prime is 1109553458983. The next prime is 1109553459019. The reversal of 1109553459013 is 3109543559011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1101110238244 + 8443220769 = 1049338^2 + 91887^2 .

It is a cyclic number.

It is not a de Polignac number, because 1109553459013 - 2²¹ = 1109551361861 is a prime.

It is a super-2 number, since 2×1109553459013² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1109553459019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 554776729506 + 554776729507.

It is an arithmetic number, because the mean of its divisors is an integer number (554776729507).

Almost surely, 2^{1109553459013} is an apocalyptic number.

It is an amenable number.

1109553459013 is a deficient number, since it is larger than the sum of its proper divisors (1).

1109553459013 is an equidigital number, since it uses as much as digits as its factorization.

1109553459013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 364500, while the sum is 46.

The spelling of 1109553459013 in words is "one trillion, one hundred nine billion, five hundred fifty-three million, four hundred fifty-nine thousand, thirteen".