123300435220545 has 32 divisors (see below), whose sum is σ = 226542426439680. Its totient is φ = 56635606607040.

The previous prime is 123300435220537. The next prime is 123300435220561. The reversal of 123300435220545 is 545022534003321.

It is not a de Polignac number, because 123300435220545 - 2³ = 123300435220537 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19665138049 + ... + 19665144318.

It is an arithmetic number, because the mean of its divisors is an integer number (7079450826240).

Almost surely, 2^{123300435220545} is an apocalyptic number.

123300435220545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123300435220545 is a deficient number, since it is larger than the sum of its proper divisors (103241991219135).

123300435220545 is a wasteful number, since it uses less digits than its factorization.

123300435220545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39330282405.

The product of its (nonzero) digits is 432000, while the sum is 39.

Adding to 123300435220545 its reverse (545022534003321), we get a palindrome (668322969223866).

The spelling of 123300435220545 in words is "one hundred twenty-three trillion, three hundred billion, four hundred thirty-five million, two hundred twenty thousand, five hundred forty-five".