12403234242 has 64 divisors (see below), whose sum is σ = 32869877760. Its totient is φ = 3389701392.

The previous prime is 12403234223. The next prime is 12403234253. The reversal of 12403234242 is 24243230421.

12403234242 is a `hidden beast` number, since 1 + 2 + 403 + 234 + 24 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704628 + ... + 722015.

It is an arithmetic number, because the mean of its divisors is an integer number (513591840).

Almost surely, 2^12403234242 is an apocalyptic number.

12403234242 is an abundant number, since it is smaller than the sum of its proper divisors (20466643518).

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

12403234242 is a wasteful number, since it uses less digits than its factorization.

12403234242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426684 (or 1426678 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 12403234242 its reverse (24243230421), we get a palindrome (36646464663).

The spelling of 12403234242 in words is "twelve billion, four hundred three million, two hundred thirty-four thousand, two hundred forty-two".