12138306322 has 8 divisors (see below), whose sum is σ = 18302787072. Its totient is φ = 6037377300.

The previous prime is 12138306319. The next prime is 12138306353. The reversal of 12138306322 is 22360383121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15887454 + ... + 15888217.

It is an arithmetic number, because the mean of its divisors is an integer number (2287848384).

Almost surely, 2^12138306322 is an apocalyptic number.

12138306322 is a deficient number, since it is larger than the sum of its proper divisors (6164480750).

12138306322 is a wasteful number, since it uses less digits than its factorization.

12138306322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31775864.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 12138306322 its reverse (22360383121), we get a palindrome (34498689443).

The spelling of 12138306322 in words is "twelve billion, one hundred thirty-eight million, three hundred six thousand, three hundred twenty-two".