12109830550 has 24 divisors (see below), whose sum is σ = 22527801432. Its totient is φ = 4843176000.

The previous prime is 12109830511. The next prime is 12109830563. The reversal of 12109830550 is 5503890121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 393730 + ... + 423370.

It is an arithmetic number, because the mean of its divisors is an integer number (938658393).

Almost surely, 2^12109830550 is an apocalyptic number.

12109830550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12109830550 is a deficient number, since it is larger than the sum of its proper divisors (10417970882).

12109830550 is a wasteful number, since it uses less digits than its factorization.

12109830550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37824 (or 37819 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 12109830550 in words is "twelve billion, one hundred nine million, eight hundred thirty thousand, five hundred fifty".