11112320173 has 2 divisors, whose sum is σ = 11112320174. Its totient is φ = 11112320172.

The previous prime is 11112320161. The next prime is 11112320227. The reversal of 11112320173 is 37102321111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6960064329 + 4152255844 = 83427^2 + 64438^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112320173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11112320123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5556160086 + 5556160087.

It is an arithmetic number, because the mean of its divisors is an integer number (5556160087).

Almost surely, 2^11112320173 is an apocalyptic number.

It is an amenable number.

11112320173 is a deficient number, since it is larger than the sum of its proper divisors (1).

11112320173 is an equidigital number, since it uses as much as digits as its factorization.

11112320173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 22.

Adding to 11112320173 its reverse (37102321111), we get a palindrome (48214641284).

The spelling of 11112320173 in words is "eleven billion, one hundred twelve million, three hundred twenty thousand, one hundred seventy-three".