120112643 has 4 divisors (see below), whose sum is σ = 137271600. Its totient is φ = 102953688.

The previous prime is 120112639. The next prime is 120112651. The reversal of 120112643 is 346211021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120112643 - 2² = 120112639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8579468 + ... + 8579481.

It is an arithmetic number, because the mean of its divisors is an integer number (34317900).

Almost surely, 2^120112643 is an apocalyptic number.

120112643 is a deficient number, since it is larger than the sum of its proper divisors (17158957).

120112643 is an equidigital number, since it uses as much as digits as its factorization.

120112643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17158956.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 120112643 is about 10959.5913701196. The cubic root of 120112643 is about 493.3967007820.

Adding to 120112643 its reverse (346211021), we get a palindrome (466323664).

The spelling of 120112643 in words is "one hundred twenty million, one hundred twelve thousand, six hundred forty-three".