608011111 has 2 divisors, whose sum is σ = 608011112. Its totient is φ = 608011110.

The previous prime is 608011109. The next prime is 608011169. The reversal of 608011111 is 111110806.

608011111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 608011111 - 2¹ = 608011109 is a prime.

It is a super-2 number, since 2×608011111² = 739355022198908642, which contains 22 as substring.

Together with 608011109, it forms a pair of twin primes.

It is a Chen prime.

608011111 is a modest number, since divided by 11111 gives 6080 as remainder.

It is equal to p_31721203 and since 608011111 and 31721203 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (608011211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304005555 + 304005556.

It is an arithmetic number, because the mean of its divisors is an integer number (304005556).

Almost surely, 2^608011111 is an apocalyptic number.

608011111 is a deficient number, since it is larger than the sum of its proper divisors (1).

608011111 is an equidigital number, since it uses as much as digits as its factorization.

608011111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 19.

The square root of 608011111 is about 24657.8813161228. The cubic root of 608011111 is about 847.1698773717.

Adding to 608011111 its reverse (111110806), we get a palindrome (719121917).

The spelling of 608011111 in words is "six hundred eight million, eleven thousand, one hundred eleven".