11340331021 has 4 divisors (see below), whose sum is σ = 11646826492. Its totient is φ = 11033835552.

The previous prime is 11340331001. The next prime is 11340331069. The reversal of 11340331021 is 12013304311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12013304311 = 4657 ⋅2579623.

It can be written as a sum of positive squares in 2 ways, for example, as 5672349225 + 5667981796 = 75315^2 + 75286^2 .

It is a cyclic number.

It is not a de Polignac number, because 11340331021 - 2⁹ = 11340330509 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 11340331021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11340331001) 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 3 ways as a sum of consecutive naturals, for example, 153247680 + ... + 153247753.

It is an arithmetic number, because the mean of its divisors is an integer number (2911706623).

Almost surely, 2^11340331021 is an apocalyptic number.

It is an amenable number.

11340331021 is a deficient number, since it is larger than the sum of its proper divisors (306495471).

11340331021 is an equidigital number, since it uses as much as digits as its factorization.

11340331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306495470.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 11340331021 its reverse (12013304311), we get a palindrome (23353635332).

The spelling of 11340331021 in words is "eleven billion, three hundred forty million, three hundred thirty-one thousand, twenty-one".