206936123 has 2 divisors, whose sum is σ = 206936124. Its totient is φ = 206936122.

The previous prime is 206936099. The next prime is 206936179. The reversal of 206936123 is 321639602.

206936123 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 206936123 - 2¹² = 206932027 is a prime.

It is a super-2 number, since 2×206936123² = 85645118004542258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 206936123.

It is not a weakly prime, because it can be changed into another prime (206936183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103468061 + 103468062.

It is an arithmetic number, because the mean of its divisors is an integer number (103468062).

Almost surely, 2^206936123 is an apocalyptic number.

206936123 is a deficient number, since it is larger than the sum of its proper divisors (1).

206936123 is an equidigital number, since it uses as much as digits as its factorization.

206936123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 206936123 is about 14385.2745194522. The cubic root of 206936123 is about 591.4873161699.

The spelling of 206936123 in words is "two hundred six million, nine hundred thirty-six thousand, one hundred twenty-three".