112100000020 has 48 divisors (see below), whose sum is σ = 239924779920. Its totient is φ = 43980558336.

The previous prime is 112100000011. The next prime is 112100000041. The reversal of 112100000020 is 20000001211.

It can be written as a sum of positive squares in 8 ways, for example, as 5006128516 + 107093871504 = 70754^2 + 327252^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112099999949 and 112100000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3917284 + ... + 3945796.

It is an arithmetic number, because the mean of its divisors is an integer number (4998432915).

Almost surely, 2^112100000020 is an apocalyptic number.

112100000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112100000020 is an abundant number, since it is smaller than the sum of its proper divisors (127824779900).

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

112100000020 is a wasteful number, since it uses less digits than its factorization.

112100000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32284 (or 32282 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 112100000020 its reverse (20000001211), we get a palindrome (132100001231).

The spelling of 112100000020 in words is "one hundred twelve billion, one hundred million, twenty", and thus it is an aban number.