1110123209197 has 2 divisors, whose sum is σ = 1110123209198. Its totient is φ = 1110123209196.

The previous prime is 1110123209183. The next prime is 1110123209249. The reversal of 1110123209197 is 7919023210111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 749377623556 + 360745585641 = 865666^2 + 600621^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110123209197 - 2¹⁵ = 1110123176429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110123209597) 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, 555061604598 + 555061604599.

It is an arithmetic number, because the mean of its divisors is an integer number (555061604599).

Almost surely, 2^{1110123209197} is an apocalyptic number.

It is an amenable number.

1110123209197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110123209197 is an equidigital number, since it uses as much as digits as its factorization.

1110123209197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 37.

The spelling of 1110123209197 in words is "one trillion, one hundred ten billion, one hundred twenty-three million, two hundred nine thousand, one hundred ninety-seven".