211311131232323 has 2 divisors, whose sum is σ = 211311131232324. Its totient is φ = 211311131232322.

The previous prime is 211311131232169. The next prime is 211311131232359. The reversal of 211311131232323 is 323232131113112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211311131232323 - 2⁸ = 211311131232067 is a prime.

It is not a weakly prime, because it can be changed into another prime (211311131232623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105655565616161 + 105655565616162.

It is an arithmetic number, because the mean of its divisors is an integer number (105655565616162).

Almost surely, 2^{211311131232323} is an apocalyptic number.

211311131232323 is a deficient number, since it is larger than the sum of its proper divisors (1).

211311131232323 is an equidigital number, since it uses as much as digits as its factorization.

211311131232323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

Adding to 211311131232323 its reverse (323232131113112), we get a palindrome (534543262345435).

The spelling of 211311131232323 in words is "two hundred eleven trillion, three hundred eleven billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred twenty-three".