11045131423217 has 2 divisors, whose sum is σ = 11045131423218. Its totient is φ = 11045131423216.

The previous prime is 11045131423201. The next prime is 11045131423231. The reversal of 11045131423217 is 71232413154011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5834393871601 + 5210737551616 = 2415449^2 + 2282704^2 .

It is a cyclic number.

It is not a de Polignac number, because 11045131423217 - 2⁴ = 11045131423201 is a prime.

It is a super-2 number, since 2×11045131423217² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11045131423297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5522565711608 + 5522565711609.

It is an arithmetic number, because the mean of its divisors is an integer number (5522565711609).

Almost surely, 2^{11045131423217} is an apocalyptic number.

It is an amenable number.

11045131423217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11045131423217 is an equidigital number, since it uses as much as digits as its factorization.

11045131423217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 11045131423217 its reverse (71232413154011), we get a palindrome (82277544577228).

The spelling of 11045131423217 in words is "eleven trillion, forty-five billion, one hundred thirty-one million, four hundred twenty-three thousand, two hundred seventeen".