120021120073 has 2 divisors, whose sum is σ = 120021120074. Its totient is φ = 120021120072.

The previous prime is 120021120071. The next prime is 120021120103. The reversal of 120021120073 is 370021120021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110146325689 + 9874794384 = 331883^2 + 99372^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021120073 - 2¹ = 120021120071 is a prime.

Together with 120021120071, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 120021120073.

It is not a weakly prime, because it can be changed into another prime (120021120071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010560036 + 60010560037.

It is an arithmetic number, because the mean of its divisors is an integer number (60010560037).

Almost surely, 2^120021120073 is an apocalyptic number.

It is an amenable number.

120021120073 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021120073 is an equidigital number, since it uses as much as digits as its factorization.

120021120073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 19.

Adding to 120021120073 its reverse (370021120021), we get a palindrome (490042240094).

The spelling of 120021120073 in words is "one hundred twenty billion, twenty-one million, one hundred twenty thousand, seventy-three".