311930063 has 2 divisors, whose sum is σ = 311930064. Its totient is φ = 311930062.

The previous prime is 311930057. The next prime is 311930077. The reversal of 311930063 is 360039113.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 311930063 - 2¹² = 311925967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311930053) 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, 155965031 + 155965032.

It is an arithmetic number, because the mean of its divisors is an integer number (155965032).

Almost surely, 2^311930063 is an apocalyptic number.

311930063 is a deficient number, since it is larger than the sum of its proper divisors (1).

311930063 is an equidigital number, since it uses as much as digits as its factorization.

311930063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1458, while the sum is 26.

The square root of 311930063 is about 17661.5419202288. The cubic root of 311930063 is about 678.1916072186.

Adding to 311930063 its reverse (360039113), we get a palindrome (671969176).

The spelling of 311930063 in words is "three hundred eleven million, nine hundred thirty thousand, sixty-three".