120021311297 has 2 divisors, whose sum is σ = 120021311298. Its totient is φ = 120021311296.

The previous prime is 120021311243. The next prime is 120021311321. The reversal of 120021311297 is 792113120021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119488440241 + 532871056 = 345671^2 + 23084^2 .

It is a cyclic number.

It is not a de Polignac number, because 120021311297 - 2³⁰ = 118947569473 is a prime.

It is not a weakly prime, because it can be changed into another prime (120021311797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60010655648 + 60010655649.

It is an arithmetic number, because the mean of its divisors is an integer number (60010655649).

Almost surely, 2^120021311297 is an apocalyptic number.

It is an amenable number.

120021311297 is a deficient number, since it is larger than the sum of its proper divisors (1).

120021311297 is an equidigital number, since it uses as much as digits as its factorization.

120021311297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 120021311297 in words is "one hundred twenty billion, twenty-one million, three hundred eleven thousand, two hundred ninety-seven".