11123131213163 has 2 divisors, whose sum is σ = 11123131213164. Its totient is φ = 11123131213162.

The previous prime is 11123131213081. The next prime is 11123131213171. The reversal of 11123131213163 is 36131213132111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11123131213163 - 2²⁴ = 11123114435947 is a prime.

It is not a weakly prime, because it can be changed into another prime (11123131213963) 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, 5561565606581 + 5561565606582.

It is an arithmetic number, because the mean of its divisors is an integer number (5561565606582).

Almost surely, 2^{11123131213163} is an apocalyptic number.

11123131213163 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123131213163 is an equidigital number, since it uses as much as digits as its factorization.

11123131213163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 29.

Adding to 11123131213163 its reverse (36131213132111), we get a palindrome (47254344345274).

The spelling of 11123131213163 in words is "eleven trillion, one hundred twenty-three billion, one hundred thirty-one million, two hundred thirteen thousand, one hundred sixty-three".