11321442533 has 4 divisors (see below), whose sum is σ = 11321709228. Its totient is φ = 11321175840.

The previous prime is 11321442497. The next prime is 11321442551. The reversal of 11321442533 is 33524412311.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5154952804 + 6166489729 = 71798^2 + 78527^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321442533 - 2¹² = 11321438437 is a prime.

It is a super-2 number, since 2×11321442533² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11321442496 and 11321442505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321442593) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53888 + ... + 159833.

It is an arithmetic number, because the mean of its divisors is an integer number (2830427307).

Almost surely, 2^11321442533 is an apocalyptic number.

It is an amenable number.

11321442533 is a deficient number, since it is larger than the sum of its proper divisors (266695).

11321442533 is an equidigital number, since it uses as much as digits as its factorization.

11321442533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266694.

The product of its digits is 8640, while the sum is 29.

Adding to 11321442533 its reverse (33524412311), we get a palindrome (44845854844).

The spelling of 11321442533 in words is "eleven billion, three hundred twenty-one million, four hundred forty-two thousand, five hundred thirty-three".