68307311 has 2 divisors, whose sum is σ = 68307312. Its totient is φ = 68307310.

The previous prime is 68307307. The next prime is 68307359. The reversal of 68307311 is 11370386.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 68307311 - 2² = 68307307 is a prime.

It is a super-3 number, since 3×68307311³ (a number of 24 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68307361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34153655 + 34153656.

It is an arithmetic number, because the mean of its divisors is an integer number (34153656).

Almost surely, 2^68307311 is an apocalyptic number.

68307311 is a deficient number, since it is larger than the sum of its proper divisors (1).

68307311 is an equidigital number, since it uses as much as digits as its factorization.

68307311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 68307311 is about 8264.8237125785. The cubic root of 68307311 is about 408.7794575808.

Adding to 68307311 its reverse (11370386), we get a palindrome (79677697).

It can be divided in two parts, 6830 and 7311, that added together give a palindrome (14141).

The spelling of 68307311 in words is "sixty-eight million, three hundred seven thousand, three hundred eleven".