111340242020 has 24 divisors (see below), whose sum is σ = 267216581184. Its totient is φ = 38173797216.

The previous prime is 111340242007. The next prime is 111340242031. The reversal of 111340242020 is 20242043111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 111340241983 and 111340242001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 397643582 + ... + 397643861.

It is an arithmetic number, because the mean of its divisors is an integer number (11134024216).

Almost surely, 2^111340242020 is an apocalyptic number.

111340242020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111340242020 is an abundant number, since it is smaller than the sum of its proper divisors (155876339164).

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

111340242020 is a wasteful number, since it uses less digits than its factorization.

111340242020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 795287459 (or 795287457 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 111340242020 its reverse (20242043111), we get a palindrome (131582285131).

The spelling of 111340242020 in words is "one hundred eleven billion, three hundred forty million, two hundred forty-two thousand, twenty".