13331012032321 has 4 divisors (see below), whose sum is σ = 13332353055444. Its totient is φ = 13329671009200.

The previous prime is 13331012032297. The next prime is 13331012032363. The reversal of 13331012032321 is 12323021013331.

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 238374391696 + 13092637640625 = 488236^2 + 3618375^2 .

It is a cyclic number.

It is not a de Polignac number, because 13331012032321 - 2¹⁹ = 13331011508033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13331012032621) 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, 670496650 + ... + 670516531.

It is an arithmetic number, because the mean of its divisors is an integer number (3333088263861).

Almost surely, 2^{13331012032321} is an apocalyptic number.

It is an amenable number.

13331012032321 is a deficient number, since it is larger than the sum of its proper divisors (1341023123).

13331012032321 is an equidigital number, since it uses as much as digits as its factorization.

13331012032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1341023122.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 13331012032321 its reverse (12323021013331), we get a palindrome (25654033045652).

The spelling of 13331012032321 in words is "thirteen trillion, three hundred thirty-one billion, twelve million, thirty-two thousand, three hundred twenty-one".