123322283910865 has 64 divisors (see below), whose sum is σ = 161082743169600. Its totient is φ = 90096693018624.

The previous prime is 123322283910851. The next prime is 123322283910919. The reversal of 123322283910865 is 568019382223321.

It can be written as a sum of positive squares in 32 ways, for example, as 121717005046849 + 1605278864016 = 11032543^2 + 1266996^2 .

It is a cyclic number.

It is not a de Polignac number, because 123322283910865 - 2³⁷ = 123184844957393 is a prime.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 1879622181 + ... + 1879687789.

It is an arithmetic number, because the mean of its divisors is an integer number (2516917862025).

Almost surely, 2^{123322283910865} is an apocalyptic number.

It is an amenable number.

123322283910865 is a deficient number, since it is larger than the sum of its proper divisors (37760459258735).

123322283910865 is a wasteful number, since it uses less digits than its factorization.

123322283910865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66646.

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 123322283910865 in words is "one hundred twenty-three trillion, three hundred twenty-two billion, two hundred eighty-three million, nine hundred ten thousand, eight hundred sixty-five".