113565215089 has 2 divisors, whose sum is σ = 113565215090. Its totient is φ = 113565215088.

The previous prime is 113565215087. The next prime is 113565215123. The reversal of 113565215089 is 980512565311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111699666225 + 1865548864 = 334215^2 + 43192^2 .

It is a cyclic number.

It is not a de Polignac number, because 113565215089 - 2¹ = 113565215087 is a prime.

Together with 113565215087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (113565215087) 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, 56782607544 + 56782607545.

It is an arithmetic number, because the mean of its divisors is an integer number (56782607545).

Almost surely, 2^113565215089 is an apocalyptic number.

It is an amenable number.

113565215089 is a deficient number, since it is larger than the sum of its proper divisors (1).

113565215089 is an equidigital number, since it uses as much as digits as its factorization.

113565215089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324000, while the sum is 46.

The spelling of 113565215089 in words is "one hundred thirteen billion, five hundred sixty-five million, two hundred fifteen thousand, eighty-nine".