120812844799 has 4 divisors (see below), whose sum is σ = 120869539960. Its totient is φ = 120756149640.

The previous prime is 120812844797. The next prime is 120812844847. The reversal of 120812844799 is 997448218021.

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 120812844799 - 2¹ = 120812844797 is a prime.

It is a super-2 number, since 2×120812844799² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120812844797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28344384 + ... + 28348645.

It is an arithmetic number, because the mean of its divisors is an integer number (30217384990).

Almost surely, 2^120812844799 is an apocalyptic number.

120812844799 is a deficient number, since it is larger than the sum of its proper divisors (56695161).

120812844799 is an equidigital number, since it uses as much as digits as its factorization.

120812844799 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56695160.

The product of its (nonzero) digits is 2322432, while the sum is 55.

The spelling of 120812844799 in words is "one hundred twenty billion, eight hundred twelve million, eight hundred forty-four thousand, seven hundred ninety-nine".