181000564103 has 2 divisors, whose sum is σ = 181000564104. Its totient is φ = 181000564102.

The previous prime is 181000564037. The next prime is 181000564117. The reversal of 181000564103 is 301465000181.

181000564103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-181000564103 is a prime.

It is a super-2 number, since 2×181000564103² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (181000564133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 90500282051 + 90500282052.

It is an arithmetic number, because the mean of its divisors is an integer number (90500282052).

Almost surely, 2^181000564103 is an apocalyptic number.

181000564103 is a deficient number, since it is larger than the sum of its proper divisors (1).

181000564103 is an equidigital number, since it uses as much as digits as its factorization.

181000564103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 181000564103 its reverse (301465000181), we get a palindrome (482465564284).

The spelling of 181000564103 in words is "one hundred eighty-one billion, five hundred sixty-four thousand, one hundred three".