12103420422 has 32 divisors (see below), whose sum is σ = 24585224832. Its totient is φ = 3971493504.

The previous prime is 12103420411. The next prime is 12103420423. The reversal of 12103420422 is 22402430121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12103420423) 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, 614613 + ... + 633999.

It is an arithmetic number, because the mean of its divisors is an integer number (768288276).

Almost surely, 2^12103420422 is an apocalyptic number.

12103420422 is an abundant number, since it is smaller than the sum of its proper divisors (12481804410).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12103420422 is a wasteful number, since it uses less digits than its factorization.

12103420422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21012.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 12103420422 its reverse (22402430121), we get a palindrome (34505850543).

The spelling of 12103420422 in words is "twelve billion, one hundred three million, four hundred twenty thousand, four hundred twenty-two".