111012311203217 has 2 divisors, whose sum is σ = 111012311203218. Its totient is φ = 111012311203216.

The previous prime is 111012311203181. The next prime is 111012311203223. The reversal of 111012311203217 is 712302113210111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68362320958801 + 42649990244416 = 8268151^2 + 6530696^2 .

It is an emirp because it is prime and its reverse (712302113210111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 111012311203217 - 2¹⁶ = 111012311137681 is a prime.

It is a super-2 number, since 2×111012311203217² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111012311202217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55506155601608 + 55506155601609.

It is an arithmetic number, because the mean of its divisors is an integer number (55506155601609).

Almost surely, 2^{111012311203217} is an apocalyptic number.

It is an amenable number.

111012311203217 is a deficient number, since it is larger than the sum of its proper divisors (1).

111012311203217 is an equidigital number, since it uses as much as digits as its factorization.

111012311203217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 26.

Adding to 111012311203217 its reverse (712302113210111), we get a palindrome (823314424413328).

The spelling of 111012311203217 in words is "one hundred eleven trillion, twelve billion, three hundred eleven million, two hundred three thousand, two hundred seventeen".