121032200173 has 2 divisors, whose sum is σ = 121032200174. Its totient is φ = 121032200172.

The previous prime is 121032200161. The next prime is 121032200293. The reversal of 121032200173 is 371002230121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 81757680489 + 39274519684 = 285933^2 + 198178^2 .

It is a cyclic number.

It is not a de Polignac number, because 121032200173 - 2¹³ = 121032191981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121032204173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60516100086 + 60516100087.

It is an arithmetic number, because the mean of its divisors is an integer number (60516100087).

Almost surely, 2^121032200173 is an apocalyptic number.

It is an amenable number.

121032200173 is a deficient number, since it is larger than the sum of its proper divisors (1).

121032200173 is an equidigital number, since it uses as much as digits as its factorization.

121032200173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 22.

Adding to 121032200173 its reverse (371002230121), we get a palindrome (492034430294).

The spelling of 121032200173 in words is "one hundred twenty-one billion, thirty-two million, two hundred thousand, one hundred seventy-three".