111020010042 has 64 divisors (see below), whose sum is σ = 237748137984. Its totient is φ = 34438348800.

The previous prime is 111020010041. The next prime is 111020010071. The reversal of 111020010042 is 240010020111.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (111020010041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11878023 + ... + 11887365.

It is an arithmetic number, because the mean of its divisors is an integer number (3714814656).

Almost surely, 2^111020010042 is an apocalyptic number.

111020010042 is an abundant number, since it is smaller than the sum of its proper divisors (126728127942).

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

111020010042 is a wasteful number, since it uses less digits than its factorization.

111020010042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10663.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 111020010042 its reverse (240010020111), we get a palindrome (351030030153).

The spelling of 111020010042 in words is "one hundred eleven billion, twenty million, ten thousand, forty-two".