120078355357117 has 2 divisors, whose sum is σ = 120078355357118. Its totient is φ = 120078355357116.

The previous prime is 120078355357057. The next prime is 120078355357151. The reversal of 120078355357117 is 711753553870021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72679137342436 + 47399218014681 = 8525206^2 + 6884709^2 .

It is a cyclic number.

It is not a de Polignac number, because 120078355357117 - 2¹⁵ = 120078355324349 is a prime.

It is a super-2 number, since 2×120078355357117² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120078355352117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60039177678558 + 60039177678559.

It is an arithmetic number, because the mean of its divisors is an integer number (60039177678559).

Almost surely, 2^{120078355357117} is an apocalyptic number.

It is an amenable number.

120078355357117 is a deficient number, since it is larger than the sum of its proper divisors (1).

120078355357117 is an equidigital number, since it uses as much as digits as its factorization.

120078355357117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6174000, while the sum is 55.

The spelling of 120078355357117 in words is "one hundred twenty trillion, seventy-eight billion, three hundred fifty-five million, three hundred fifty-seven thousand, one hundred seventeen".