201111679 has 2 divisors, whose sum is σ = 201111680. Its totient is φ = 201111678.

The previous prime is 201111653. The next prime is 201111697. The reversal of 201111679 is 976111102.

Together with next prime (201111697) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201111679 - 2⁷ = 201111551 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 (201112679) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555839 + 100555840.

It is an arithmetic number, because the mean of its divisors is an integer number (100555840).

Almost surely, 2^201111679 is an apocalyptic number.

201111679 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111679 is an equidigital number, since it uses as much as digits as its factorization.

201111679 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 28.

The square root of 201111679 is about 14181.3849464712. The cubic root of 201111679 is about 585.8850693077.

The spelling of 201111679 in words is "two hundred one million, one hundred eleven thousand, six hundred seventy-nine".