111424140020 has 12 divisors (see below), whose sum is σ = 233990694084. Its totient is φ = 44569656000.

The previous prime is 111424140011. The next prime is 111424140071. The reversal of 111424140020 is 20041424111.

It can be written as a sum of positive squares in 2 ways, for example, as 39919240804 + 71504899216 = 199798^2 + 267404^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 5571207001 = 111424140020 / (1 + 1 + 1 + 4 + 2 + 4 + 1 + 4 + 0 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 111424139974 and 111424140001.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2785603481 + ... + 2785603520.

It is an arithmetic number, because the mean of its divisors is an integer number (19499224507).

Almost surely, 2^111424140020 is an apocalyptic number.

111424140020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111424140020 is an abundant number, since it is smaller than the sum of its proper divisors (122566554064).

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

111424140020 is a wasteful number, since it uses less digits than its factorization.

111424140020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5571207010 (or 5571207008 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 111424140020 its reverse (20041424111), we get a palindrome (131465564131).

The spelling of 111424140020 in words is "one hundred eleven billion, four hundred twenty-four million, one hundred forty thousand, twenty".