111400401042 has 48 divisors (see below), whose sum is σ = 277443167040. Its totient is φ = 31644698976.

The previous prime is 111400401037. The next prime is 111400401059. The reversal of 111400401042 is 240104004111.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2533492 + ... + 2577087.

It is an arithmetic number, because the mean of its divisors is an integer number (5780065980).

Almost surely, 2^111400401042 is an apocalyptic number.

111400401042 is an abundant number, since it is smaller than the sum of its proper divisors (166042765998).

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

111400401042 is a wasteful number, since it uses less digits than its factorization.

111400401042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5110767 (or 5110764 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 111400401042 its reverse (240104004111), we get a palindrome (351504405153).

The spelling of 111400401042 in words is "one hundred eleven billion, four hundred million, four hundred one thousand, forty-two".