111420042 has 24 divisors (see below), whose sum is σ = 228428448. Its totient is φ = 36230880.

The previous prime is 111420019. The next prime is 111420097. The reversal of 111420042 is 240024111.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4563 + ... + 15609.

It is an arithmetic number, because the mean of its divisors is an integer number (9517852).

Almost surely, 2^111420042 is an apocalyptic number.

111420042 is an abundant number, since it is smaller than the sum of its proper divisors (117008406).

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

111420042 is a wasteful number, since it uses less digits than its factorization.

111420042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11134 (or 11093 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 111420042 is about 10555.5692409268. The cubic root of 111420042 is about 481.1949999100.

Adding to 111420042 its reverse (240024111), we get a palindrome (351444153).

The spelling of 111420042 in words is "one hundred eleven million, four hundred twenty thousand, forty-two".