13323031021231 has 2 divisors, whose sum is σ = 13323031021232. Its totient is φ = 13323031021230.

The previous prime is 13323031021219. The next prime is 13323031021319. The reversal of 13323031021231 is 13212013032331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13323031021231 is a prime.

It is a super-2 number, since 2×13323031021231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13323031021196 and 13323031021205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13323031021031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661515510615 + 6661515510616.

It is an arithmetic number, because the mean of its divisors is an integer number (6661515510616).

Almost surely, 2^{13323031021231} is an apocalyptic number.

13323031021231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13323031021231 is an equidigital number, since it uses as much as digits as its factorization.

13323031021231 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13323031021231 its reverse (13212013032331), we get a palindrome (26535044053562).

The spelling of 13323031021231 in words is "thirteen trillion, three hundred twenty-three billion, thirty-one million, twenty-one thousand, two hundred thirty-one".