120012020111173 has 2 divisors, whose sum is σ = 120012020111174. Its totient is φ = 120012020111172.

The previous prime is 120012020111111. The next prime is 120012020111231. The reversal of 120012020111173 is 371111020210021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 119236637719809 + 775382391364 = 10919553^2 + 880558^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120012020111173 is a prime.

It is a super-2 number, since 2×120012020111173² (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 (120012020121173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60006010055586 + 60006010055587.

It is an arithmetic number, because the mean of its divisors is an integer number (60006010055587).

Almost surely, 2^{120012020111173} is an apocalyptic number.

It is an amenable number.

120012020111173 is a deficient number, since it is larger than the sum of its proper divisors (1).

120012020111173 is an equidigital number, since it uses as much as digits as its factorization.

120012020111173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 120012020111173 its reverse (371111020210021), we get a palindrome (491123040321194).

The spelling of 120012020111173 in words is "one hundred twenty trillion, twelve billion, twenty million, one hundred eleven thousand, one hundred seventy-three".