111142112321 has 8 divisors (see below), whose sum is σ = 123873562080. Its totient is φ = 99098849088.

The previous prime is 111142112303. The next prime is 111142112327. The reversal of 111142112321 is 123211241111.

It is a happy number.

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

It is not a de Polignac number, because 111142112321 - 2³⁰ = 110068370497 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 111142112293 and 111142112302.

It is not an unprimeable number, because it can be changed into a prime (111142112327) 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, 172046291 + ... + 172046936.

It is an arithmetic number, because the mean of its divisors is an integer number (15484195260).

Almost surely, 2^111142112321 is an apocalyptic number.

It is an amenable number.

111142112321 is a deficient number, since it is larger than the sum of its proper divisors (12731449759).

111142112321 is a wasteful number, since it uses less digits than its factorization.

111142112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344093263.

The product of its digits is 96, while the sum is 20.

Adding to 111142112321 its reverse (123211241111), we get a palindrome (234353353432).

The spelling of 111142112321 in words is "one hundred eleven billion, one hundred forty-two million, one hundred twelve thousand, three hundred twenty-one".