12123550330 has 32 divisors (see below), whose sum is σ = 22173886080. Its totient is φ = 4771583040.

The previous prime is 12123550301. The next prime is 12123550337. The reversal of 12123550330 is 3305532121.

It is a junction number, because it is equal to n+sod(n) for n = 12123550295 and 12123550304.

It is not an unprimeable number, because it can be changed into a prime (12123550337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344617 + ... + 378163.

It is an arithmetic number, because the mean of its divisors is an integer number (692933940).

Almost surely, 2^12123550330 is an apocalyptic number.

12123550330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123550330 is a deficient number, since it is larger than the sum of its proper divisors (10050335750).

12123550330 is a wasteful number, since it uses less digits than its factorization.

12123550330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34134.

The product of its (nonzero) digits is 2700, while the sum is 25.

The spelling of 12123550330 in words is "twelve billion, one hundred twenty-three million, five hundred fifty thousand, three hundred thirty".