13321320132231 has 6 divisors (see below), whose sum is σ = 19241906857680. Its totient is φ = 8880880088148.

The previous prime is 13321320132223. The next prime is 13321320132301. The reversal of 13321320132231 is 13223102312331.

13321320132231 is a `hidden beast` number, since 1 + 3 + 321 + 320 + 13 + 2 + 2 + 3 + 1 = 666.

It is not a de Polignac number, because 13321320132231 - 2³ = 13321320132223 is a prime.

It is a super-3 number, since 3×13321320132231³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 13321320132195 and 13321320132204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13321320136231) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 740073340671 + ... + 740073340688.

It is an arithmetic number, because the mean of its divisors is an integer number (3206984476280).

Almost surely, 2^{13321320132231} is an apocalyptic number.

13321320132231 is a deficient number, since it is larger than the sum of its proper divisors (5920586725449).

13321320132231 is a wasteful number, since it uses less digits than its factorization.

13321320132231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480146681365 (or 1480146681362 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 13321320132231 its reverse (13223102312331), we get a palindrome (26544422444562).

The spelling of 13321320132231 in words is "thirteen trillion, three hundred twenty-one billion, three hundred twenty million, one hundred thirty-two thousand, two hundred thirty-one".