123255330122115 has 256 divisors, whose sum is σ = 240387173798400. Its totient is φ = 59680233160704.

The previous prime is 123255330122083. The next prime is 123255330122117. The reversal of 123255330122115 is 511221033552321.

123255330122115 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 5 + 533 + 0 + 1 + 2 + 2 + 115 = 666.

It is not a de Polignac number, because 123255330122115 - 2⁵ = 123255330122083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123255330122115.

It is not an unprimeable number, because it can be changed into a prime (123255330122117) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 2814733641 + ... + 2814777429.

It is an arithmetic number, because the mean of its divisors is an integer number (939012397650).

Almost surely, 2^{123255330122115} is an apocalyptic number.

123255330122115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

123255330122115 is a deficient number, since it is larger than the sum of its proper divisors (117131843676285).

123255330122115 is a wasteful number, since it uses less digits than its factorization.

123255330122115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44263 (or 44257 counting only the distinct ones).

The product of its (nonzero) digits is 54000, while the sum is 36.

Adding to 123255330122115 its reverse (511221033552321), we get a palindrome (634476363674436).

The spelling of 123255330122115 in words is "one hundred twenty-three trillion, two hundred fifty-five billion, three hundred thirty million, one hundred twenty-two thousand, one hundred fifteen".