120443421997 has 2 divisors, whose sum is σ = 120443421998. Its totient is φ = 120443421996.

The previous prime is 120443421991. The next prime is 120443422003. The reversal of 120443421997 is 799124344021.

It is a balanced prime because it is at equal distance from previous prime (120443421991) and next prime (120443422003).

It can be written as a sum of positive squares in only one way, i.e., 65170941796 + 55272480201 = 255286^2 + 235101^2 .

It is a cyclic number.

It is not a de Polignac number, because 120443421997 - 2⁷ = 120443421869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120443421991) 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 as a sum of consecutive naturals, namely, 60221710998 + 60221710999.

It is an arithmetic number, because the mean of its divisors is an integer number (60221710999).

Almost surely, 2^120443421997 is an apocalyptic number.

It is an amenable number.

120443421997 is a deficient number, since it is larger than the sum of its proper divisors (1).

120443421997 is an equidigital number, since it uses as much as digits as its factorization.

120443421997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 435456, while the sum is 46.

The spelling of 120443421997 in words is "one hundred twenty billion, four hundred forty-three million, four hundred twenty-one thousand, nine hundred ninety-seven".