11123102213 has 2 divisors, whose sum is σ = 11123102214. Its totient is φ = 11123102212.

The previous prime is 11123102183. The next prime is 11123102273. The reversal of 11123102213 is 31220132111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10610442049 + 512660164 = 103007^2 + 22642^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123102213 - 2¹⁴ = 11123085829 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11123102191 and 11123102200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11123102273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561551106 + 5561551107.

It is an arithmetic number, because the mean of its divisors is an integer number (5561551107).

Almost surely, 2^11123102213 is an apocalyptic number.

It is an amenable number.

11123102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123102213 is an equidigital number, since it uses as much as digits as its factorization.

11123102213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11123102213 its reverse (31220132111), we get a palindrome (42343234324).

The spelling of 11123102213 in words is "eleven billion, one hundred twenty-three million, one hundred two thousand, two hundred thirteen".