123003534445 has 16 divisors (see below), whose sum is σ = 161713910592. Its totient is φ = 89073170560.

The previous prime is 123003534377. The next prime is 123003534449. The reversal of 123003534445 is 544435300321.

It is a happy number.

It is not a de Polignac number, because 123003534445 - 2⁷ = 123003534317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123003534445.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123003534449) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4786387 + ... + 4812016.

It is an arithmetic number, because the mean of its divisors is an integer number (10107119412).

Almost surely, 2^123003534445 is an apocalyptic number.

It is an amenable number.

123003534445 is a deficient number, since it is larger than the sum of its proper divisors (38710376147).

123003534445 is a wasteful number, since it uses less digits than its factorization.

123003534445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9598652.

The product of its (nonzero) digits is 86400, while the sum is 34.

Adding to 123003534445 its reverse (544435300321), we get a palindrome (667438834766).

The spelling of 123003534445 in words is "one hundred twenty-three billion, three million, five hundred thirty-four thousand, four hundred forty-five".