13231131312233 has 2 divisors, whose sum is σ = 13231131312234. Its totient is φ = 13231131312232.

The previous prime is 13231131312211. The next prime is 13231131312241. The reversal of 13231131312233 is 33221313113231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10743533619289 + 2487597692944 = 3277733^2 + 1577212^2 .

It is a cyclic number.

It is not a de Polignac number, because 13231131312233 - 2²⁰ = 13231130263657 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13231131312196 and 13231131312205.

It is not a weakly prime, because it can be changed into another prime (13231131332233) 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, 6615565656116 + 6615565656117.

It is an arithmetic number, because the mean of its divisors is an integer number (6615565656117).

Almost surely, 2^{13231131312233} is an apocalyptic number.

It is an amenable number.

13231131312233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13231131312233 is an equidigital number, since it uses as much as digits as its factorization.

13231131312233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 29.

Adding to 13231131312233 its reverse (33221313113231), we get a palindrome (46452444425464).

The spelling of 13231131312233 in words is "thirteen trillion, two hundred thirty-one billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirty-three".