111012043142 has 48 divisors (see below), whose sum is σ = 225270509856. Its totient is φ = 39924403200.

The previous prime is 111012043139. The next prime is 111012043151. The reversal of 111012043142 is 241340210111.

It is a super-2 number, since 2×111012043142² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2498459 + ... + 2542502.

It is an arithmetic number, because the mean of its divisors is an integer number (4693135622).

Almost surely, 2^111012043142 is an apocalyptic number.

111012043142 is an abundant number, since it is smaller than the sum of its proper divisors (114258466714).

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

111012043142 is a wasteful number, since it uses less digits than its factorization.

111012043142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5041005 (or 5040994 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111012043142 its reverse (241340210111), we get a palindrome (352352253253).

The spelling of 111012043142 in words is "one hundred eleven billion, twelve million, forty-three thousand, one hundred forty-two".