120999999997973 has 2 divisors, whose sum is σ = 120999999997974. Its totient is φ = 120999999997972.

The previous prime is 120999999997969. The next prime is 120999999997999. The reversal of 120999999997973 is 379799999999021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107435754074884 + 13564245923089 = 10365122^2 + 3682967^2 .

It is a cyclic number.

It is not a de Polignac number, because 120999999997973 - 2² = 120999999997969 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120999999991973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60499999998986 + 60499999998987.

It is an arithmetic number, because the mean of its divisors is an integer number (60499999998987).

Almost surely, 2^{120999999997973} is an apocalyptic number.

It is an amenable number.

120999999997973 is a deficient number, since it is larger than the sum of its proper divisors (1).

120999999997973 is an equidigital number, since it uses as much as digits as its factorization.

120999999997973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113901623766, while the sum is 101.

The spelling of 120999999997973 in words is "one hundred twenty trillion, nine hundred ninety-nine billion, nine hundred ninety-nine million, nine hundred ninety-seven thousand, nine hundred seventy-three".