1100213 has 2 divisors, whose sum is σ = 1100214. Its totient is φ = 1100212.

The previous prime is 1100179. The next prime is 1100219. The reversal of 1100213 is 3120011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1067089 + 33124 = 1033^2 + 182^2 .

It is an emirp because it is prime and its reverse (3120011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100213 - 2⁶ = 1100149 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1100213.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550106 + 550107.

It is an arithmetic number, because the mean of its divisors is an integer number (550107).

2^1100213 is an apocalyptic number.

It is an amenable number.

1100213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100213 is an equidigital number, since it uses as much as digits as its factorization.

1100213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 8.

The square root of 1100213 is about 1048.9103870207. The cubic root of 1100213 is about 103.2346740146.

Adding to 1100213 its reverse (3120011), we get a palindrome (4220224).

The spelling of 1100213 in words is "one million, one hundred thousand, two hundred thirteen".