123354225435545 has 32 divisors (see below), whose sum is σ = 162670418249472. Its totient is φ = 89235490436352.

The previous prime is 123354225435533. The next prime is 123354225435587. The reversal of 123354225435545 is 545534522453321.

It is not a de Polignac number, because 123354225435545 - 2³⁶ = 123285505958809 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25442447 + ... + 29900276.

It is an arithmetic number, because the mean of its divisors is an integer number (5083450570296).

Almost surely, 2^{123354225435545} is an apocalyptic number.

It is an amenable number.

123354225435545 is a deficient number, since it is larger than the sum of its proper divisors (39316192813927).

123354225435545 is a wasteful number, since it uses less digits than its factorization.

123354225435545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55343441.

The product of its digits is 43200000, while the sum is 53.

Adding to 123354225435545 its reverse (545534522453321), we get a palindrome (668888747888866).

The spelling of 123354225435545 in words is "one hundred twenty-three trillion, three hundred fifty-four billion, two hundred twenty-five million, four hundred thirty-five thousand, five hundred forty-five".