112131322020 has 144 divisors (see below), whose sum is σ = 352871500800. Its totient is φ = 28791417600.

The previous prime is 112131322001. The next prime is 112131322081. The reversal of 112131322020 is 20223131211.

112131322020 is a `hidden beast` number, since 112 + 1 + 313 + 220 + 20 = 666.

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 = 112131321984 and 112131322002.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1059930 + ... + 1160910.

Almost surely, 2^112131322020 is an apocalyptic number.

112131322020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112131322020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176435750400).

112131322020 is an abundant number, since it is smaller than the sum of its proper divisors (240740178780).

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

112131322020 is a wasteful number, since it uses less digits than its factorization.

112131322020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101226 (or 101221 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 112131322020 its reverse (20223131211), we get a palindrome (132354453231).

The spelling of 112131322020 in words is "one hundred twelve billion, one hundred thirty-one million, three hundred twenty-two thousand, twenty".