120999954717373 has 2 divisors, whose sum is σ = 120999954717374. Its totient is φ = 120999954717372.

The previous prime is 120999954717353. The next prime is 120999954717391. The reversal of 120999954717373 is 373717459999021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88623433656004 + 32376521061369 = 9414002^2 + 5690037^2 .

It is a cyclic number.

It is not a de Polignac number, because 120999954717373 - 2²⁵ = 120999921162941 is a prime.

It is a super-2 number, since 2×120999954717373² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120999954717373.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120999954717353) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60499977358686 + 60499977358687.

It is an arithmetic number, because the mean of its divisors is an integer number (60499977358687).

Almost surely, 2^{120999954717373} is an apocalyptic number.

It is an amenable number.

120999954717373 is a deficient number, since it is larger than the sum of its proper divisors (1).

120999954717373 is an equidigital number, since it uses as much as digits as its factorization.

120999954717373 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810152280, while the sum is 76.

The spelling of 120999954717373 in words is "one hundred twenty trillion, nine hundred ninety-nine billion, nine hundred fifty-four million, seven hundred seventeen thousand, three hundred seventy-three".