205323142967 has 2 divisors, whose sum is σ = 205323142968. Its totient is φ = 205323142966.

The previous prime is 205323142961. The next prime is 205323143027. The reversal of 205323142967 is 769241323502.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 205323142967 - 2¹² = 205323138871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (205323142961) 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, 102661571483 + 102661571484.

It is an arithmetic number, because the mean of its divisors is an integer number (102661571484).

Almost surely, 2^205323142967 is an apocalyptic number.

205323142967 is a deficient number, since it is larger than the sum of its proper divisors (1).

205323142967 is an equidigital number, since it uses as much as digits as its factorization.

205323142967 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 205323142967 in words is "two hundred five billion, three hundred twenty-three million, one hundred forty-two thousand, nine hundred sixty-seven".