12123630234426 has 32 divisors (see below), whose sum is σ = 24303038886720. Its totient is φ = 4031921189504.

The previous prime is 12123630234349. The next prime is 12123630234467. The reversal of 12123630234426 is 62443203632121.

It is a super-2 number, since 2×12123630234426² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5524060 + ... + 7400168.

It is an arithmetic number, because the mean of its divisors is an integer number (759469965210).

Almost surely, 2^{12123630234426} is an apocalyptic number.

12123630234426 is an abundant number, since it is smaller than the sum of its proper divisors (12179408652294).

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

12123630234426 is a wasteful number, since it uses less digits than its factorization.

12123630234426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1878590.

The product of its (nonzero) digits is 248832, while the sum is 39.

Adding to 12123630234426 its reverse (62443203632121), we get a palindrome (74566833866547).

The spelling of 12123630234426 in words is "twelve trillion, one hundred twenty-three billion, six hundred thirty million, two hundred thirty-four thousand, four hundred twenty-six".