11431325203321 has 12 divisors (see below), whose sum is σ = 12160633911660. Its totient is φ = 10743546195200.

The previous prime is 11431325203289. The next prime is 11431325203327. The reversal of 11431325203321 is 12330252313411.

It can be written as a sum of positive squares in 6 ways, for example, as 5790106437696 + 5641218765625 = 2406264^2 + 2375125^2 .

It is not a de Polignac number, because 11431325203321 - 2⁵ = 11431325203289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11431325203327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28010506 + ... + 28415683.

It is an arithmetic number, because the mean of its divisors is an integer number (1013386159305).

Almost surely, 2^{11431325203321} is an apocalyptic number.

It is an amenable number.

11431325203321 is a deficient number, since it is larger than the sum of its proper divisors (729308708339).

11431325203321 is an equidigital number, since it uses as much as digits as its factorization.

11431325203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56426924 (or 56426907 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 11431325203321 its reverse (12330252313411), we get a palindrome (23761577516732).

The spelling of 11431325203321 in words is "eleven trillion, four hundred thirty-one billion, three hundred twenty-five million, two hundred three thousand, three hundred twenty-one".