123301521330505 has 16 divisors (see below), whose sum is σ = 169243635141504. Its totient is φ = 84477411682560.

The previous prime is 123301521330479. The next prime is 123301521330521. The reversal of 123301521330505 is 505033125103321.

It is not a de Polignac number, because 123301521330505 - 2⁵ = 123301521330473 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 1504186432 + ... + 1504268401.

It is an arithmetic number, because the mean of its divisors is an integer number (10577727196344).

Almost surely, 2^{123301521330505} is an apocalyptic number.

It is an amenable number.

123301521330505 is a deficient number, since it is larger than the sum of its proper divisors (45942113810999).

123301521330505 is a wasteful number, since it uses less digits than its factorization.

123301521330505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3008456016.

The product of its (nonzero) digits is 40500, while the sum is 34.

Adding to 123301521330505 its reverse (505033125103321), we get a palindrome (628334646433826).

The spelling of 123301521330505 in words is "one hundred twenty-three trillion, three hundred one billion, five hundred twenty-one million, three hundred thirty thousand, five hundred five".