123555103424 has 14 divisors (see below), whose sum is σ = 245179658484. Its totient is φ = 61777551680.

The previous prime is 123555103393. The next prime is 123555103487. The reversal of 123555103424 is 424301555321.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 965274182 + ... + 965274309.

Almost surely, 2^123555103424 is an apocalyptic number.

It is an amenable number.

123555103424 is a deficient number, since it is larger than the sum of its proper divisors (121624555060).

123555103424 is an equidigital number, since it uses as much as digits as its factorization.

123555103424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1930548503 (or 1930548493 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 123555103424 its reverse (424301555321), we get a palindrome (547856658745).

The spelling of 123555103424 in words is "one hundred twenty-three billion, five hundred fifty-five million, one hundred three thousand, four hundred twenty-four".