1115965585223 has 2 divisors, whose sum is σ = 1115965585224. Its totient is φ = 1115965585222.

The previous prime is 1115965585213. The next prime is 1115965585243. The reversal of 1115965585223 is 3225855695111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1115965585223 - 2⁸ = 1115965584967 is a prime.

It is a super-2 number, since 2×1115965585223² (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 (1115965585213) 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, 557982792611 + 557982792612.

It is an arithmetic number, because the mean of its divisors is an integer number (557982792612).

Almost surely, 2^{1115965585223} is an apocalyptic number.

1115965585223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1115965585223 is an equidigital number, since it uses as much as digits as its factorization.

1115965585223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3240000, while the sum is 53.

The spelling of 1115965585223 in words is "one trillion, one hundred fifteen billion, nine hundred sixty-five million, five hundred eighty-five thousand, two hundred twenty-three".