12142515021142 has 16 divisors (see below), whose sum is σ = 19954847167632. Its totient is φ = 5495636917120.

The previous prime is 12142515021037. The next prime is 12142515021151. The reversal of 12142515021142 is 24112051524121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1184399383 + ... + 1184409634.

It is an arithmetic number, because the mean of its divisors is an integer number (1247177947977).

Almost surely, 2^{12142515021142} is an apocalyptic number.

12142515021142 is a deficient number, since it is larger than the sum of its proper divisors (7812332146490).

12142515021142 is a wasteful number, since it uses less digits than its factorization.

12142515021142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2368809263.

The product of its (nonzero) digits is 6400, while the sum is 31.

Adding to 12142515021142 its reverse (24112051524121), we get a palindrome (36254566545263).

The spelling of 12142515021142 in words is "twelve trillion, one hundred forty-two billion, five hundred fifteen million, twenty-one thousand, one hundred forty-two".