11232120213 has 6 divisors (see below), whose sum is σ = 16224173654. Its totient is φ = 7488080136.

The previous prime is 11232120169. The next prime is 11232120217. The reversal of 11232120213 is 31202123211.

11232120213 is a `hidden beast` number, since 112 + 321 + 20 + 213 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10366701489 + 865418724 = 101817^2 + 29418^2 .

It is not a de Polignac number, because 11232120213 - 2¹⁰ = 11232119189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11232120217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 624006670 + ... + 624006687.

Almost surely, 2^11232120213 is an apocalyptic number.

It is an amenable number.

11232120213 is a deficient number, since it is larger than the sum of its proper divisors (4992053441).

11232120213 is a wasteful number, since it uses less digits than its factorization.

11232120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248013363 (or 1248013360 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11232120213 its reverse (31202123211), we get a palindrome (42434243424).

The spelling of 11232120213 in words is "eleven billion, two hundred thirty-two million, one hundred twenty thousand, two hundred thirteen".