12142230242 has 16 divisors (see below), whose sum is σ = 19050403392. Its totient is φ = 5793350640.

The previous prime is 12142230241. The next prime is 12142230253. The reversal of 12142230242 is 24203224121.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (12142230241) 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, 294128 + ... + 332859.

It is an arithmetic number, because the mean of its divisors is an integer number (1190650212).

Almost surely, 2^12142230242 is an apocalyptic number.

12142230242 is a deficient number, since it is larger than the sum of its proper divisors (6908173150).

12142230242 is a wasteful number, since it uses less digits than its factorization.

12142230242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627433.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12142230242 its reverse (24203224121), we get a palindrome (36345454363).

The spelling of 12142230242 in words is "twelve billion, one hundred forty-two million, two hundred thirty thousand, two hundred forty-two".