206123342179 has 2 divisors, whose sum is σ = 206123342180. Its totient is φ = 206123342178.

The previous prime is 206123342141. The next prime is 206123342197. The reversal of 206123342179 is 971243321602.

Together with next prime (206123342197) 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 206123342179 - 2²³ = 206114953571 is a prime.

It is a super-2 number, since 2×206123342179² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (206123342479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103061671089 + 103061671090.

It is an arithmetic number, because the mean of its divisors is an integer number (103061671090).

Almost surely, 2^206123342179 is an apocalyptic number.

206123342179 is a deficient number, since it is larger than the sum of its proper divisors (1).

206123342179 is an equidigital number, since it uses as much as digits as its factorization.

206123342179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 40.

The spelling of 206123342179 in words is "two hundred six billion, one hundred twenty-three million, three hundred forty-two thousand, one hundred seventy-nine".