13111043342233 has 2 divisors, whose sum is σ = 13111043342234. Its totient is φ = 13111043342232.

The previous prime is 13111043342227. The next prime is 13111043342291. The reversal of 13111043342233 is 33224334011131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9973298750809 + 3137744591424 = 3158053^2 + 1771368^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13111043342233 is a prime.

It is a super-2 number, since 2×13111043342233² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13111043342195 and 13111043342204.

It is not a weakly prime, because it can be changed into another prime (13111043342833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6555521671116 + 6555521671117.

It is an arithmetic number, because the mean of its divisors is an integer number (6555521671117).

Almost surely, 2^{13111043342233} is an apocalyptic number.

It is an amenable number.

13111043342233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13111043342233 is an equidigital number, since it uses as much as digits as its factorization.

13111043342233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 13111043342233 its reverse (33224334011131), we get a palindrome (46335377353364).

The spelling of 13111043342233 in words is "thirteen trillion, one hundred eleven billion, forty-three million, three hundred forty-two thousand, two hundred thirty-three".