667210232111 has 2 divisors, whose sum is σ = 667210232112. Its totient is φ = 667210232110.

The previous prime is 667210232099. The next prime is 667210232119. The reversal of 667210232111 is 111232012766.

667210232111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-667210232111 is a prime.

It is a super-2 number, since 2×667210232111² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (667210232119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333605116055 + 333605116056.

It is an arithmetic number, because the mean of its divisors is an integer number (333605116056).

Almost surely, 2^667210232111 is an apocalyptic number.

667210232111 is a deficient number, since it is larger than the sum of its proper divisors (1).

667210232111 is an equidigital number, since it uses as much as digits as its factorization.

667210232111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

Adding to 667210232111 its reverse (111232012766), we get a palindrome (778442244877).

The spelling of 667210232111 in words is "six hundred sixty-seven billion, two hundred ten million, two hundred thirty-two thousand, one hundred eleven".