123345044605 has 16 divisors (see below), whose sum is σ = 150240682944. Its totient is φ = 97191959040.

The previous prime is 123345044567. The next prime is 123345044609. The reversal of 123345044605 is 506440543321.

It is not a de Polignac number, because 123345044605 - 2¹³ = 123345036413 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 (123345044609) 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, 3978765 + ... + 4009645.

It is an arithmetic number, because the mean of its divisors is an integer number (9390042684).

Almost surely, 2^123345044605 is an apocalyptic number.

It is an amenable number.

123345044605 is a deficient number, since it is larger than the sum of its proper divisors (26895638339).

123345044605 is a wasteful number, since it uses less digits than its factorization.

123345044605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42876.

The product of its (nonzero) digits is 172800, while the sum is 37.

Adding to 123345044605 its reverse (506440543321), we get a palindrome (629785587926).

The spelling of 123345044605 in words is "one hundred twenty-three billion, three hundred forty-five million, forty-four thousand, six hundred five".