111012200001173 has 2 divisors, whose sum is σ = 111012200001174. Its totient is φ = 111012200001172.

The previous prime is 111012200001149. The next prime is 111012200001293. The reversal of 111012200001173 is 371100002210111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 107271136123684 + 3741063877489 = 10357178^2 + 1934183^2 .

It is a cyclic number.

It is not a de Polignac number, because 111012200001173 - 2²⁴ = 111012183223957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111012200001133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506100000586 + 55506100000587.

It is an arithmetic number, because the mean of its divisors is an integer number (55506100000587).

Almost surely, 2^{111012200001173} is an apocalyptic number.

It is an amenable number.

111012200001173 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012200001173 is an equidigital number, since it uses as much as digits as its factorization.

111012200001173 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 111012200001173 its reverse (371100002210111), we get a palindrome (482112202211284).

The spelling of 111012200001173 in words is "one hundred eleven trillion, twelve billion, two hundred million, one thousand, one hundred seventy-three".