123300435220551 has 6 divisors (see below), whose sum is σ = 178100628651920. Its totient is φ = 82200290147028.

The previous prime is 123300435220537. The next prime is 123300435220561. The reversal of 123300435220551 is 155022534003321.

123300435220551 is a `hidden beast` number, since 1 + 2 + 3 + 30 + 0 + 4 + 3 + 52 + 20 + 551 = 666.

It is not a de Polignac number, because 123300435220551 - 2²⁵ = 123300401666119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123300435220561) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 6850024178911 + ... + 6850024178928.

Almost surely, 2^{123300435220551} is an apocalyptic number.

123300435220551 is a deficient number, since it is larger than the sum of its proper divisors (54800193431369).

123300435220551 is a wasteful number, since it uses less digits than its factorization.

123300435220551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13700048357845 (or 13700048357842 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 123300435220551 its reverse (155022534003321), we get a palindrome (278322969223872).

The spelling of 123300435220551 in words is "one hundred twenty-three trillion, three hundred billion, four hundred thirty-five million, two hundred twenty thousand, five hundred fifty-one".