11211321133 has 8 divisors (see below), whose sum is σ = 11425206168. Its totient is φ = 10997523264.

The previous prime is 11211321131. The next prime is 11211321161. The reversal of 11211321133 is 33112311211.

It can be written as a sum of positive squares in 4 ways, for example, as 140493609 + 11070827524 = 11853^2 + 105218^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11211321133 - 2¹ = 11211321131 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11211321133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211321131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276391 + ... + 314347.

It is an arithmetic number, because the mean of its divisors is an integer number (1428150771).

Almost surely, 2^11211321133 is an apocalyptic number.

It is an amenable number.

11211321133 is a deficient number, since it is larger than the sum of its proper divisors (213885035).

11211321133 is an equidigital number, since it uses as much as digits as its factorization.

11211321133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43583.

The product of its digits is 108, while the sum is 19.

Adding to 11211321133 its reverse (33112311211), we get a palindrome (44323632344).

The spelling of 11211321133 in words is "eleven billion, two hundred eleven million, three hundred twenty-one thousand, one hundred thirty-three".