12138436330 has 32 divisors (see below), whose sum is σ = 23792227200. Its totient is φ = 4441211712.

The previous prime is 12138436319. The next prime is 12138436333. The reversal of 12138436330 is 3363483121.

It is not an unprimeable number, because it can be changed into a prime (12138436333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1095982 + ... + 1107001.

It is an arithmetic number, because the mean of its divisors is an integer number (743507100).

Almost surely, 2^12138436330 is an apocalyptic number.

12138436330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12138436330 is a deficient number, since it is larger than the sum of its proper divisors (11653790870).

12138436330 is a wasteful number, since it uses less digits than its factorization.

12138436330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203038.

The product of its (nonzero) digits is 31104, while the sum is 34.

The spelling of 12138436330 in words is "twelve billion, one hundred thirty-eight million, four hundred thirty-six thousand, three hundred thirty".