311132323 has 2 divisors, whose sum is σ = 311132324. Its totient is φ = 311132322.

The previous prime is 311132273. The next prime is 311132357. The reversal of 311132323 is 323231113.

It is a strong prime.

It is an emirp because it is prime and its reverse (323231113) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311132323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311132323.

It is not a weakly prime, because it can be changed into another prime (311132363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155566161 + 155566162.

It is an arithmetic number, because the mean of its divisors is an integer number (155566162).

Almost surely, 2^311132323 is an apocalyptic number.

311132323 is a deficient number, since it is larger than the sum of its proper divisors (1).

311132323 is an equidigital number, since it uses as much as digits as its factorization.

311132323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324, while the sum is 19.

The square root of 311132323 is about 17638.9433640454. The cubic root of 311132323 is about 677.6129706361.

Adding to 311132323 its reverse (323231113), we get a palindrome (634363436).

The spelling of 311132323 in words is "three hundred eleven million, one hundred thirty-two thousand, three hundred twenty-three".