12128432330 has 16 divisors (see below), whose sum is σ = 24949918080. Its totient is φ = 4158319632.

The previous prime is 12128432273. The next prime is 12128432333. The reversal of 12128432330 is 3323482121.

It is a junction number, because it is equal to n+sod(n) for n = 12128432293 and 12128432302.

It is not an unprimeable number, because it can be changed into a prime (12128432333) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86631590 + ... + 86631729.

It is an arithmetic number, because the mean of its divisors is an integer number (1559369880).

Almost surely, 2^12128432330 is an apocalyptic number.

12128432330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12128432330 is an abundant number, since it is smaller than the sum of its proper divisors (12821485750).

12128432330 is a wasteful number, since it uses less digits than its factorization.

12128432330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173263333.

The product of its (nonzero) digits is 6912, while the sum is 29.

The spelling of 12128432330 in words is "twelve billion, one hundred twenty-eight million, four hundred thirty-two thousand, three hundred thirty".