13031221330333 has 8 divisors (see below), whose sum is σ = 13064213891960. Its totient is φ = 12998229615360.

The previous prime is 13031221330289. The next prime is 13031221330363. The reversal of 13031221330333 is 33303312213031.

It can be written as a sum of positive squares in 4 ways, for example, as 11248363484164 + 1782857846169 = 3353858^2 + 1335237^2 .

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 13031221330333 - 2¹⁷ = 13031221199261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13031221330363) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40496113 + ... + 40816633.

It is an arithmetic number, because the mean of its divisors is an integer number (1633026736495).

Almost surely, 2^{13031221330333} is an apocalyptic number.

It is an amenable number.

13031221330333 is a deficient number, since it is larger than the sum of its proper divisors (32992561627).

13031221330333 is a wasteful number, since it uses less digits than its factorization.

13031221330333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423327.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 13031221330333 its reverse (33303312213031), we get a palindrome (46334533543364).

The spelling of 13031221330333 in words is "thirteen trillion, thirty-one billion, two hundred twenty-one million, three hundred thirty thousand, three hundred thirty-three".