545423115123 has 24 divisors (see below), whose sum is σ = 800831715216. Its totient is φ = 357617419200.

The previous prime is 545423115073. The next prime is 545423115143. The reversal of 545423115123 is 321511324545.

545423115123 is a `hidden beast` number, since 5 + 454 + 2 + 31 + 151 + 23 = 666.

It is not a de Polignac number, because 545423115123 - 2⁸ = 545423114867 is a prime.

It is a super-2 number, since 2×545423115123² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (545423115143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5867161 + ... + 5959397.

It is an arithmetic number, because the mean of its divisors is an integer number (33367988134).

Almost surely, 2^545423115123 is an apocalyptic number.

545423115123 is a deficient number, since it is larger than the sum of its proper divisors (255408600093).

545423115123 is a wasteful number, since it uses less digits than its factorization.

545423115123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103075 (or 103072 counting only the distinct ones).

The product of its digits is 72000, while the sum is 36.

Adding to 545423115123 its reverse (321511324545), we get a palindrome (866934439668).

The spelling of 545423115123 in words is "five hundred forty-five billion, four hundred twenty-three million, one hundred fifteen thousand, one hundred twenty-three".