111125043142 has 8 divisors (see below), whose sum is σ = 168305890896. Its totient is φ = 55023079512.

The previous prime is 111125043121. The next prime is 111125043143. The reversal of 111125043142 is 241340521111.

It is a happy number.

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

It is a super-2 number, since 2×111125043142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111125043143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269720773 + ... + 269721184.

It is an arithmetic number, because the mean of its divisors is an integer number (21038236362).

Almost surely, 2^111125043142 is an apocalyptic number.

111125043142 is a deficient number, since it is larger than the sum of its proper divisors (57180847754).

111125043142 is a wasteful number, since it uses less digits than its factorization.

111125043142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 539442062.

The product of its (nonzero) digits is 960, while the sum is 25.

Adding to 111125043142 its reverse (241340521111), we get a palindrome (352465564253).

The spelling of 111125043142 in words is "one hundred eleven billion, one hundred twenty-five million, forty-three thousand, one hundred forty-two".