123365063506 has 8 divisors (see below), whose sum is σ = 185053748220. Its totient is φ = 61680480768.

The previous prime is 123365063483. The next prime is 123365063513. The reversal of 123365063506 is 605360563321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99893291481 + 23471772025 = 316059^2 + 153205^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 949171 + ... + 1071286.

Almost surely, 2^123365063506 is an apocalyptic number.

123365063506 is a deficient number, since it is larger than the sum of its proper divisors (61688684714).

123365063506 is a wasteful number, since it uses less digits than its factorization.

123365063506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2050988.

The product of its (nonzero) digits is 291600, while the sum is 40.

The spelling of 123365063506 in words is "one hundred twenty-three billion, three hundred sixty-five million, sixty-three thousand, five hundred six".