12105500331 has 8 divisors (see below), whose sum is σ = 16208202240. Its totient is φ = 8036565992.

The previous prime is 12105500327. The next prime is 12105500357. The reversal of 12105500331 is 13300550121.

12105500331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12105500331 - 2² = 12105500327 is a prime.

It is a super-2 number, since 2×12105500331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12105500298 and 12105500307.

It is not an unprimeable number, because it can be changed into a prime (12105500431) by changing a digit.

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, 8441055 + ... + 8442488.

It is an arithmetic number, because the mean of its divisors is an integer number (2026025280).

Almost surely, 2^12105500331 is an apocalyptic number.

12105500331 is a deficient number, since it is larger than the sum of its proper divisors (4102701909).

12105500331 is a wasteful number, since it uses less digits than its factorization.

12105500331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16883785.

The product of its (nonzero) digits is 450, while the sum is 21.

The spelling of 12105500331 in words is "twelve billion, one hundred five million, five hundred thousand, three hundred thirty-one".