311532344311 has 2 divisors, whose sum is σ = 311532344312. Its totient is φ = 311532344310.

The previous prime is 311532344309. The next prime is 311532344317. The reversal of 311532344311 is 113443235113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311532344311 - 2¹ = 311532344309 is a prime.

Together with 311532344309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311532344317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155766172155 + 155766172156.

It is an arithmetic number, because the mean of its divisors is an integer number (155766172156).

Almost surely, 2^311532344311 is an apocalyptic number.

311532344311 is a deficient number, since it is larger than the sum of its proper divisors (1).

311532344311 is an equidigital number, since it uses as much as digits as its factorization.

311532344311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12960, while the sum is 31.

Adding to 311532344311 its reverse (113443235113), we get a palindrome (424975579424).

The spelling of 311532344311 in words is "three hundred eleven billion, five hundred thirty-two million, three hundred forty-four thousand, three hundred eleven".