11321332421 has 8 divisors (see below), whose sum is σ = 12940376064. Its totient is φ = 9702716400.

The previous prime is 11321332391. The next prime is 11321332433. The reversal of 11321332421 is 12423312311.

11321332421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11321332421 - 2²⁶ = 11254223557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11321332621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48005 + ... + 157946.

It is an arithmetic number, because the mean of its divisors is an integer number (1617547008).

Almost surely, 2^11321332421 is an apocalyptic number.

It is an amenable number.

11321332421 is a deficient number, since it is larger than the sum of its proper divisors (1619043643).

11321332421 is an equidigital number, since it uses as much as digits as its factorization.

11321332421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213811.

The product of its digits is 864, while the sum is 23.

Adding to 11321332421 its reverse (12423312311), we get a palindrome (23744644732).

The spelling of 11321332421 in words is "eleven billion, three hundred twenty-one million, three hundred thirty-two thousand, four hundred twenty-one".