123120043404 has 24 divisors (see below), whose sum is σ = 287362490688. Its totient is φ = 41028244560.

The previous prime is 123120043399. The next prime is 123120043421. The reversal of 123120043404 is 404340021321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1427602 + ... + 1511385.

It is an arithmetic number, because the mean of its divisors is an integer number (11973437112).

Almost surely, 2^123120043404 is an apocalyptic number.

It is an amenable number.

123120043404 is an abundant number, since it is smaller than the sum of its proper divisors (164242447284).

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

123120043404 is a wasteful number, since it uses less digits than its factorization.

123120043404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942485 (or 2942483 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 123120043404 its reverse (404340021321), we get a palindrome (527460064725).

The spelling of 123120043404 in words is "one hundred twenty-three billion, one hundred twenty million, forty-three thousand, four hundred four".