12330055540 has 24 divisors (see below), whose sum is σ = 28247036832. Its totient is φ = 4483656480.

The previous prime is 12330055523. The next prime is 12330055553. The reversal of 12330055540 is 4555003321.

It is a junction number, because it is equal to n+sod(n) for n = 12330055499 and 12330055508.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28022634 + ... + 28023073.

It is an arithmetic number, because the mean of its divisors is an integer number (1176959868).

Almost surely, 2^12330055540 is an apocalyptic number.

12330055540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12330055540 is an abundant number, since it is smaller than the sum of its proper divisors (15916981292).

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

12330055540 is a wasteful number, since it uses less digits than its factorization.

12330055540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56045727 (or 56045725 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

Adding to 12330055540 its reverse (4555003321), we get a palindrome (16885058861).

The spelling of 12330055540 in words is "twelve billion, three hundred thirty million, fifty-five thousand, five hundred forty".