120443421999 has 8 divisors (see below), whose sum is σ = 164508088752. Its totient is φ = 78337184960.

The previous prime is 120443421997. The next prime is 120443422003. The reversal of 120443421999 is 999124344021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120443421999 - 2¹ = 120443421997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120443421991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489607284 + ... + 489607529.

It is an arithmetic number, because the mean of its divisors is an integer number (20563511094).

Almost surely, 2^120443421999 is an apocalyptic number.

120443421999 is a deficient number, since it is larger than the sum of its proper divisors (44064666753).

120443421999 is an equidigital number, since it uses as much as digits as its factorization.

120443421999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 979214857.

The product of its (nonzero) digits is 559872, while the sum is 48.

The spelling of 120443421999 in words is "one hundred twenty billion, four hundred forty-three million, four hundred twenty-one thousand, nine hundred ninety-nine".