12142230142 has 16 divisors (see below), whose sum is σ = 20920917600. Its totient is φ = 5177396448.

The previous prime is 12142230101. The next prime is 12142230151. The reversal of 12142230142 is 24103224121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2198517 + ... + 2204032.

It is an arithmetic number, because the mean of its divisors is an integer number (1307557350).

Almost surely, 2^12142230142 is an apocalyptic number.

12142230142 is a deficient number, since it is larger than the sum of its proper divisors (8778687458).

12142230142 is a wasteful number, since it uses less digits than its factorization.

12142230142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4402755.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 12142230142 its reverse (24103224121), we get a palindrome (36245454263).

The spelling of 12142230142 in words is "twelve billion, one hundred forty-two million, two hundred thirty thousand, one hundred forty-two".