112131820 has 12 divisors (see below), whose sum is σ = 235476864. Its totient is φ = 44852720.

The previous prime is 112131797. The next prime is 112131823. The reversal of 112131820 is 28131211.

It is not an unprimeable number, because it can be changed into a prime (112131823) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 2803276 + ... + 2803315.

It is an arithmetic number, because the mean of its divisors is an integer number (19623072).

Almost surely, 2^112131820 is an apocalyptic number.

112131820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112131820 is an abundant number, since it is smaller than the sum of its proper divisors (123345044).

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

112131820 is a wasteful number, since it uses less digits than its factorization.

112131820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5606600 (or 5606598 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 19.

The square root of 112131820 is about 10589.2313224332. The cubic root of 112131820 is about 482.2174887828.

The spelling of 112131820 in words is "one hundred twelve million, one hundred thirty-one thousand, eight hundred twenty".