123244124445 has 48 divisors (see below), whose sum is σ = 230288927232. Its totient is φ = 60612520320.

The previous prime is 123244124407. The next prime is 123244124491. The reversal of 123244124445 is 544421442321.

123244124445 is a `hidden beast` number, since 1 + 232 + 4 + 412 + 4 + 4 + 4 + 5 = 666.

It is not a de Polignac number, because 123244124445 - 2¹³ = 123244116253 is a prime.

It is a super-2 number, since 2×123244124445² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 473442 + ... + 686028.

It is an arithmetic number, because the mean of its divisors is an integer number (4797685984).

Almost surely, 2^123244124445 is an apocalyptic number.

123244124445 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

123244124445 is a deficient number, since it is larger than the sum of its proper divisors (107044802787).

123244124445 is a wasteful number, since it uses less digits than its factorization.

123244124445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213602 (or 213599 counting only the distinct ones).

The product of its digits is 122880, while the sum is 36.

Adding to 123244124445 its reverse (544421442321), we get a palindrome (667665566766).

The spelling of 123244124445 in words is "one hundred twenty-three billion, two hundred forty-four million, one hundred twenty-four thousand, four hundred forty-five".