111134041020 has 72 divisors (see below), whose sum is σ = 337143236976. Its totient is φ = 29632522752.

The previous prime is 111134040947. The next prime is 111134041037. The reversal of 111134041020 is 20140431111.

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

It is a junction number, because it is equal to n+sod(n) for n = 111134040984 and 111134041002.

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, 1952484 + ... + 2008596.

It is an arithmetic number, because the mean of its divisors is an integer number (4682544958).

Almost surely, 2^111134041020 is an apocalyptic number.

111134041020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111134041020 is an abundant number, since it is smaller than the sum of its proper divisors (226009195956).

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

111134041020 is a wasteful number, since it uses less digits than its factorization.

111134041020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67131 (or 67126 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 111134041020 its reverse (20140431111), we get a palindrome (131274472131).

The spelling of 111134041020 in words is "one hundred eleven billion, one hundred thirty-four million, forty-one thousand, twenty".