112131235220 has 24 divisors (see below), whose sum is σ = 243071582208. Its totient is φ = 43405639200.

The previous prime is 112131235219. The next prime is 112131235303. The reversal of 112131235220 is 22532131211.

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 7 ways as a sum of consecutive naturals, for example, 90427796 + ... + 90429035.

It is an arithmetic number, because the mean of its divisors is an integer number (10127982592).

Almost surely, 2^112131235220 is an apocalyptic number.

112131235220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112131235220 is an abundant number, since it is smaller than the sum of its proper divisors (130940346988).

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

112131235220 is a wasteful number, since it uses less digits than its factorization.

112131235220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180856871 (or 180856869 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 112131235220 its reverse (22532131211), we get a palindrome (134663366431).

The spelling of 112131235220 in words is "one hundred twelve billion, one hundred thirty-one million, two hundred thirty-five thousand, two hundred twenty".