112000123021 has 4 divisors (see below), whose sum is σ = 112174850844. Its totient is φ = 111825395200.

The previous prime is 112000123013. The next prime is 112000123031. The reversal of 112000123021 is 120321000211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 120321000211 = 1459 ⋅82468129.

It can be written as a sum of positive squares in 2 ways, for example, as 46841944900 + 65158178121 = 216430^2 + 255261^2 .

It is a cyclic number.

It is not a de Polignac number, because 112000123021 - 2³ = 112000123013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112000122992 and 112000123010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112000123031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87362950 + ... + 87364231.

It is an arithmetic number, because the mean of its divisors is an integer number (28043712711).

Almost surely, 2^112000123021 is an apocalyptic number.

It is an amenable number.

112000123021 is a deficient number, since it is larger than the sum of its proper divisors (174727823).

112000123021 is an equidigital number, since it uses as much as digits as its factorization.

112000123021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174727822.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 112000123021 its reverse (120321000211), we get a palindrome (232321123232).

The spelling of 112000123021 in words is "one hundred twelve billion, one hundred twenty-three thousand, twenty-one".