11213123017 has 2 divisors, whose sum is σ = 11213123018. Its totient is φ = 11213123016.

The previous prime is 11213122979. The next prime is 11213123059. The reversal of 11213123017 is 71032131211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10822032841 + 391090176 = 104029^2 + 19776^2 .

It is a cyclic number.

It is not a de Polignac number, because 11213123017 - 2⁷ = 11213122889 is a prime.

It is not a weakly prime, because it can be changed into another prime (11213126017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606561508 + 5606561509.

It is an arithmetic number, because the mean of its divisors is an integer number (5606561509).

Almost surely, 2^11213123017 is an apocalyptic number.

It is an amenable number.

11213123017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11213123017 is an equidigital number, since it uses as much as digits as its factorization.

11213123017 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 11213123017 its reverse (71032131211), we get a palindrome (82245254228).

The spelling of 11213123017 in words is "eleven billion, two hundred thirteen million, one hundred twenty-three thousand, seventeen".