12111110142 has 8 divisors (see below), whose sum is σ = 24222220296. Its totient is φ = 4037036712.

The previous prime is 12111110113. The next prime is 12111110201. The reversal of 12111110142 is 24101111121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

12111110142 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1009259173 + ... + 1009259184.

It is an arithmetic number, because the mean of its divisors is an integer number (3027777537).

Almost surely, 2^12111110142 is an apocalyptic number.

12111110142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12111110142 is a wasteful number, since it uses less digits than its factorization.

12111110142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2018518362.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 12111110142 its reverse (24101111121), we get a palindrome (36212221263).

The spelling of 12111110142 in words is "twelve billion, one hundred eleven million, one hundred ten thousand, one hundred forty-two".