12240234238 has 16 divisors (see below), whose sum is σ = 18553049280. Its totient is φ = 6055956000.

The previous prime is 12240234203. The next prime is 12240234239. The reversal of 12240234238 is 83243204221.

It is a super-2 number, since 2×12240234238² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12240234239) 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, 344443 + ... + 378313.

It is an arithmetic number, because the mean of its divisors is an integer number (1159565580).

Almost surely, 2^12240234238 is an apocalyptic number.

12240234238 is a deficient number, since it is larger than the sum of its proper divisors (6312815042).

12240234238 is a wasteful number, since it uses less digits than its factorization.

12240234238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35763.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 12240234238 its reverse (83243204221), we get a palindrome (95483438459).

The spelling of 12240234238 in words is "twelve billion, two hundred forty million, two hundred thirty-four thousand, two hundred thirty-eight".