11213073 has 10 divisors (see below), whose sum is σ = 16750514. Its totient is φ = 7475328.

The previous prime is 11213071. The next prime is 11213077. The reversal of 11213073 is 37031211.

It can be written as a sum of positive squares in only one way, i.e., 11209104 + 3969 = 3348^2 + 63^2 .

It is not a de Polignac number, because 11213073 - 2¹ = 11213071 is a prime.

It is a super-2 number, since 2×11213073² = 251466012206658, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (11213071) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 69136 + ... + 69297.

Almost surely, 2^11213073 is an apocalyptic number.

It is an amenable number.

11213073 is a deficient number, since it is larger than the sum of its proper divisors (5537441).

11213073 is an equidigital number, since it uses as much as digits as its factorization.

11213073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138445 (or 138436 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 11213073 is about 3348.5926894742. The cubic root of 11213073 is about 223.8248058813.

Adding to 11213073 its reverse (37031211), we get a palindrome (48244284).

The spelling of 11213073 in words is "eleven million, two hundred thirteen thousand, seventy-three".