112320281921 has 4 divisors (see below), whose sum is σ = 112852605744. Its totient is φ = 111787958100.

The previous prime is 112320281903. The next prime is 112320281923. The reversal of 112320281921 is 129182023211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 129182023211 = 1723 ⋅74975057.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112320281921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112320281923) 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, 266161595 + ... + 266162016.

It is an arithmetic number, because the mean of its divisors is an integer number (28213151436).

Almost surely, 2^112320281921 is an apocalyptic number.

It is an amenable number.

112320281921 is a deficient number, since it is larger than the sum of its proper divisors (532323823).

112320281921 is an equidigital number, since it uses as much as digits as its factorization.

112320281921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 532323822.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 112320281921 in words is "one hundred twelve billion, three hundred twenty million, two hundred eighty-one thousand, nine hundred twenty-one".