120100100121173 has 2 divisors, whose sum is σ = 120100100121174. Its totient is φ = 120100100121172.

The previous prime is 120100100121163. The next prime is 120100100121187. The reversal of 120100100121173 is 371121001001021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68327714859364 + 51772385261809 = 8266058^2 + 7195303^2 .

It is a cyclic number.

It is not a de Polignac number, because 120100100121173 - 2³⁰ = 120099026379349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120100100121163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60050050060586 + 60050050060587.

It is an arithmetic number, because the mean of its divisors is an integer number (60050050060587).

Almost surely, 2^{120100100121173} is an apocalyptic number.

It is an amenable number.

120100100121173 is a deficient number, since it is larger than the sum of its proper divisors (1).

120100100121173 is an equidigital number, since it uses as much as digits as its factorization.

120100100121173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 20.

Adding to 120100100121173 its reverse (371121001001021), we get a palindrome (491221101122194).

The spelling of 120100100121173 in words is "one hundred twenty trillion, one hundred billion, one hundred million, one hundred twenty-one thousand, one hundred seventy-three".