11321231003321 has 4 divisors (see below), whose sum is σ = 11813458438272. Its totient is φ = 10829003568372.

The previous prime is 11321231003309. The next prime is 11321231003393. The reversal of 11321231003321 is 12330013212311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11321231003321 - 2³⁸ = 11046353096377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23), and also a Moran number because the ratio is a prime number: 492227434927 = 11321231003321 / (1 + 1 + 3 + 2 + 1 + 2 + 3 + 1 + 0 + 0 + 3 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321231063321) 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, 246113717441 + ... + 246113717486.

It is an arithmetic number, because the mean of its divisors is an integer number (2953364609568).

Almost surely, 2^{11321231003321} is an apocalyptic number.

It is an amenable number.

11321231003321 is a deficient number, since it is larger than the sum of its proper divisors (492227434951).

11321231003321 is an equidigital number, since it uses as much as digits as its factorization.

11321231003321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 492227434950.

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

Adding to 11321231003321 its reverse (12330013212311), we get a palindrome (23651244215632).

The spelling of 11321231003321 in words is "eleven trillion, three hundred twenty-one billion, two hundred thirty-one million, three thousand, three hundred twenty-one".