11331132003221 has 4 divisors (see below), whose sum is σ = 11544926946732. Its totient is φ = 11117337059712.

The previous prime is 11331132003049. The next prime is 11331132003277. The reversal of 11331132003221 is 12230023113311.

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 9324234780721 + 2006897222500 = 3053561^2 + 1416650^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331132003221 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 (11331132003421) 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, 106897471676 + ... + 106897471781.

It is an arithmetic number, because the mean of its divisors is an integer number (2886231736683).

Almost surely, 2^{11331132003221} is an apocalyptic number.

It is an amenable number.

11331132003221 is a deficient number, since it is larger than the sum of its proper divisors (213794943511).

11331132003221 is an equidigital number, since it uses as much as digits as its factorization.

11331132003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213794943510.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11331132003221 its reverse (12230023113311), we get a palindrome (23561155116532).

The spelling of 11331132003221 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-two million, three thousand, two hundred twenty-one".