11321432210321 has 32 divisors (see below), whose sum is σ = 12151304186400. Its totient is φ = 10526964940800.

The previous prime is 11321432210303. The next prime is 11321432210393. The reversal of 11321432210321 is 12301223412311.

It can be written as a sum of positive squares in 16 ways, for example, as 1187905987921 + 10133526222400 = 1089911^2 + 3183320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11321432210321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321432215321) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382867025 + ... + 382896593.

It is an arithmetic number, because the mean of its divisors is an integer number (379728255825).

Almost surely, 2^{11321432210321} is an apocalyptic number.

It is an amenable number.

11321432210321 is a deficient number, since it is larger than the sum of its proper divisors (829871976079).

11321432210321 is a wasteful number, since it uses less digits than its factorization.

11321432210321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33269.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 11321432210321 its reverse (12301223412311), we get a palindrome (23622655622632).

The spelling of 11321432210321 in words is "eleven trillion, three hundred twenty-one billion, four hundred thirty-two million, two hundred ten thousand, three hundred twenty-one".