120721708799 has 2 divisors, whose sum is σ = 120721708800. Its totient is φ = 120721708798.

The previous prime is 120721708771. The next prime is 120721708841. The reversal of 120721708799 is 997807127021.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120721708799 - 2²⁴ = 120704931583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120721708799.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120721708199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60360854399 + 60360854400.

It is an arithmetic number, because the mean of its divisors is an integer number (60360854400).

Almost surely, 2^120721708799 is an apocalyptic number.

120721708799 is a deficient number, since it is larger than the sum of its proper divisors (1).

120721708799 is an equidigital number, since it uses as much as digits as its factorization.

120721708799 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 889056, while the sum is 53.

The spelling of 120721708799 in words is "one hundred twenty billion, seven hundred twenty-one million, seven hundred eight thousand, seven hundred ninety-nine".