123345044604 has 18 divisors (see below), whose sum is σ = 311788862840. Its totient is φ = 41115014856.

The previous prime is 123345044567. The next prime is 123345044609. The reversal of 123345044604 is 406440543321.

123345044604 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 4 + 5 + 0 + 44 + 604 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3426251239 = 123345044604 / (1 + 2 + 3 + 3 + 4 + 5 + 0 + 4 + 4 + 6 + 0 + 4).

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1713125584 + ... + 1713125655.

Almost surely, 2^123345044604 is an apocalyptic number.

It is an amenable number.

123345044604 is an abundant number, since it is smaller than the sum of its proper divisors (188443818236).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123345044604 is a wasteful number, since it uses less digits than its factorization.

123345044604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3426251249 (or 3426251244 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 123345044604 its reverse (406440543321), we get a palindrome (529785587925).

The spelling of 123345044604 in words is "one hundred twenty-three billion, three hundred forty-five million, forty-four thousand, six hundred four".