120015171181 has 2 divisors, whose sum is σ = 120015171182. Its totient is φ = 120015171180.

The previous prime is 120015171179. The next prime is 120015171197. The reversal of 120015171181 is 181171510021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119969405956 + 45765225 = 346366^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 120015171181 - 2¹ = 120015171179 is a prime.

It is a super-2 number, since 2×120015171181² (a number of 23 digits) contains 22 as substring.

Together with 120015171179, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120015171131) 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, 60007585590 + 60007585591.

It is an arithmetic number, because the mean of its divisors is an integer number (60007585591).

Almost surely, 2^120015171181 is an apocalyptic number.

It is an amenable number.

120015171181 is a deficient number, since it is larger than the sum of its proper divisors (1).

120015171181 is an equidigital number, since it uses as much as digits as its factorization.

120015171181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 28.

The spelling of 120015171181 in words is "one hundred twenty billion, fifteen million, one hundred seventy-one thousand, one hundred eighty-one".