13120404013231 has 2 divisors, whose sum is σ = 13120404013232. Its totient is φ = 13120404013230.

The previous prime is 13120404013229. The next prime is 13120404013243. The reversal of 13120404013231 is 13231040402131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13120404013231 - 2¹ = 13120404013229 is a prime.

It is a super-2 number, since 2×13120404013231² (a number of 27 digits) contains 22 as substring.

Together with 13120404013229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 13120404013196 and 13120404013205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13120404013291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560202006615 + 6560202006616.

It is an arithmetic number, because the mean of its divisors is an integer number (6560202006616).

Almost surely, 2^{13120404013231} is an apocalyptic number.

13120404013231 is a deficient number, since it is larger than the sum of its proper divisors (1).

13120404013231 is an equidigital number, since it uses as much as digits as its factorization.

13120404013231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13120404013231 its reverse (13231040402131), we get a palindrome (26351444415362).

The spelling of 13120404013231 in words is "thirteen trillion, one hundred twenty billion, four hundred four million, thirteen thousand, two hundred thirty-one".