1113309869897 has 2 divisors, whose sum is σ = 1113309869898. Its totient is φ = 1113309869896.

The previous prime is 1113309869887. The next prime is 1113309869911. The reversal of 1113309869897 is 7989689033111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 903908449081 + 209401420816 = 950741^2 + 457604^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113309869897 is a prime.

It is not a weakly prime, because it can be changed into another prime (1113309869887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556654934948 + 556654934949.

It is an arithmetic number, because the mean of its divisors is an integer number (556654934949).

Almost surely, 2^{1113309869897} is an apocalyptic number.

It is an amenable number.

1113309869897 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113309869897 is an equidigital number, since it uses as much as digits as its factorization.

1113309869897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 65.

The spelling of 1113309869897 in words is "one trillion, one hundred thirteen billion, three hundred nine million, eight hundred sixty-nine thousand, eight hundred ninety-seven".