120645444743 has 4 divisors (see below), whose sum is σ = 123588016608. Its totient is φ = 117702872880.

The previous prime is 120645444701. The next prime is 120645444763. The reversal of 120645444743 is 347444546021.

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 120645444743 - 2¹² = 120645440647 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120645444694 and 120645444703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120645444763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1471285871 + ... + 1471285952.

It is an arithmetic number, because the mean of its divisors is an integer number (30897004152).

Almost surely, 2^120645444743 is an apocalyptic number.

120645444743 is a deficient number, since it is larger than the sum of its proper divisors (2942571865).

120645444743 is an equidigital number, since it uses as much as digits as its factorization.

120645444743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2942571864.

The product of its (nonzero) digits is 1290240, while the sum is 44.

The spelling of 120645444743 in words is "one hundred twenty billion, six hundred forty-five million, four hundred forty-four thousand, seven hundred forty-three".