123383185268565 has 64 divisors (see below), whose sum is σ = 198870030323712. Its totient is φ = 65320709126400.

The previous prime is 123383185268513. The next prime is 123383185268587. The reversal of 123383185268565 is 565862581383321.

It is a happy number.

It is not a de Polignac number, because 123383185268565 - 2⁶ = 123383185268501 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123383185268496 and 123383185268505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1678120894 + ... + 1678194416.

It is an arithmetic number, because the mean of its divisors is an integer number (3107344223808).

Almost surely, 2^{123383185268565} is an apocalyptic number.

123383185268565 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123383185268565 is a deficient number, since it is larger than the sum of its proper divisors (75486845055147).

123383185268565 is a wasteful number, since it uses less digits than its factorization.

123383185268565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75210.

The product of its digits is 248832000, while the sum is 66.

The spelling of 123383185268565 in words is "one hundred twenty-three trillion, three hundred eighty-three billion, one hundred eighty-five million, two hundred sixty-eight thousand, five hundred sixty-five".