11131313433211 has 2 divisors, whose sum is σ = 11131313433212. Its totient is φ = 11131313433210.

The previous prime is 11131313433209. The next prime is 11131313433217. The reversal of 11131313433211 is 11233431313111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11131313433211 - 2¹ = 11131313433209 is a prime.

It is a super-2 number, since 2×11131313433211² (a number of 27 digits) contains 22 as substring.

Together with 11131313433209, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 11131313433211.

It is not a weakly prime, because it can be changed into another prime (11131313433217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5565656716605 + 5565656716606.

It is an arithmetic number, because the mean of its divisors is an integer number (5565656716606).

Almost surely, 2^{11131313433211} is an apocalyptic number.

11131313433211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11131313433211 is an equidigital number, since it uses as much as digits as its factorization.

11131313433211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 28.

Adding to 11131313433211 its reverse (11233431313111), we get a palindrome (22364744746322).

The spelling of 11131313433211 in words is "eleven trillion, one hundred thirty-one billion, three hundred thirteen million, four hundred thirty-three thousand, two hundred eleven".