206138935043 has 2 divisors, whose sum is σ = 206138935044. Its totient is φ = 206138935042.

The previous prime is 206138934997. The next prime is 206138935061. The reversal of 206138935043 is 340539831602.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 206138935043 - 2⁸ = 206138934787 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 206138934985 and 206138935003.

It is not a weakly prime, because it can be changed into another prime (206138935243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103069467521 + 103069467522.

It is an arithmetic number, because the mean of its divisors is an integer number (103069467522).

Almost surely, 2^206138935043 is an apocalyptic number.

206138935043 is a deficient number, since it is larger than the sum of its proper divisors (1).

206138935043 is an equidigital number, since it uses as much as digits as its factorization.

206138935043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 44.

The spelling of 206138935043 in words is "two hundred six billion, one hundred thirty-eight million, nine hundred thirty-five thousand, forty-three".