111712842 has 48 divisors (see below), whose sum is σ = 252888480. Its totient is φ = 35604576.

The previous prime is 111712807. The next prime is 111712877. The reversal of 111712842 is 248217111.

It is an interprime number because it is at equal distance from previous prime (111712807) and next prime (111712877).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37873 + ... + 40715.

It is an arithmetic number, because the mean of its divisors is an integer number (5268510).

Almost surely, 2^111712842 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111712842, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (126444240).

111712842 is an abundant number, since it is smaller than the sum of its proper divisors (141175638).

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

111712842 is a wasteful number, since it uses less digits than its factorization.

111712842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2947 (or 2944 counting only the distinct ones).

The product of its digits is 896, while the sum is 27.

The square root of 111712842 is about 10569.4295967190. The cubic root of 111712842 is about 481.6161409521.

Adding to 111712842 its reverse (248217111), we get a palindrome (359929953).

The spelling of 111712842 in words is "one hundred eleven million, seven hundred twelve thousand, eight hundred forty-two".