311223003163 has 2 divisors, whose sum is σ = 311223003164. Its totient is φ = 311223003162.

The previous prime is 311223003149. The next prime is 311223003257. The reversal of 311223003163 is 361300322113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311223003163 - 2⁵ = 311223003131 is a prime.

It is not a weakly prime, because it can be changed into another prime (311223000163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155611501581 + 155611501582.

It is an arithmetic number, because the mean of its divisors is an integer number (155611501582).

Almost surely, 2^311223003163 is an apocalyptic number.

311223003163 is a deficient number, since it is larger than the sum of its proper divisors (1).

311223003163 is an equidigital number, since it uses as much as digits as its factorization.

311223003163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 311223003163 its reverse (361300322113), we get a palindrome (672523325276).

The spelling of 311223003163 in words is "three hundred eleven billion, two hundred twenty-three million, three thousand, one hundred sixty-three".