13131111423211 has 2 divisors, whose sum is σ = 13131111423212. Its totient is φ = 13131111423210.

The previous prime is 13131111423181. The next prime is 13131111423239. The reversal of 13131111423211 is 11232411113131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13131111423211 - 2⁵ = 13131111423179 is a prime.

It is not a weakly prime, because it can be changed into another prime (13131111403211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565555711605 + 6565555711606.

It is an arithmetic number, because the mean of its divisors is an integer number (6565555711606).

Almost surely, 2^{13131111423211} is an apocalyptic number.

13131111423211 is a deficient number, since it is larger than the sum of its proper divisors (1).

13131111423211 is an equidigital number, since it uses as much as digits as its factorization.

13131111423211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 432, while the sum is 25.

Adding to 13131111423211 its reverse (11232411113131), we get a palindrome (24363522536342).

The spelling of 13131111423211 in words is "thirteen trillion, one hundred thirty-one billion, one hundred eleven million, four hundred twenty-three thousand, two hundred eleven".