11120213213 has 12 divisors (see below), whose sum is σ = 12308539068. Its totient is φ = 10011027840.

The previous prime is 11120213149. The next prime is 11120213227. The reversal of 11120213213 is 31231202111.

It can be written as a sum of positive squares in 2 ways, for example, as 3396791524 + 7723421689 = 58282^2 + 87883^2 .

It is not a de Polignac number, because 11120213213 - 2⁶ = 11120213149 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11120213191 and 11120213200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120213263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 609278 + ... + 627263.

It is an arithmetic number, because the mean of its divisors is an integer number (1025711589).

Almost surely, 2^11120213213 is an apocalyptic number.

It is an amenable number.

11120213213 is a deficient number, since it is larger than the sum of its proper divisors (1188325855).

11120213213 is a wasteful number, since it uses less digits than its factorization.

11120213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1236604 (or 1236581 counting only the distinct ones).

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

Adding to 11120213213 its reverse (31231202111), we get a palindrome (42351415324).

The spelling of 11120213213 in words is "eleven billion, one hundred twenty million, two hundred thirteen thousand, two hundred thirteen".