10812181723103 has 4 divisors (see below), whose sum is σ = 10812207048720. Its totient is φ = 10812156397488.

The previous prime is 10812181723097. The next prime is 10812181723117. The reversal of 10812181723103 is 30132718121801.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10812181723103 - 2³⁸ = 10537303816159 is a prime.

It is a super-2 number, since 2×10812181723103² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10812181723163) 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 in 3 ways as a sum of consecutive naturals, for example, 12011243 + ... + 12879996.

It is an arithmetic number, because the mean of its divisors is an integer number (2703051762180).

Almost surely, 2^{10812181723103} is an apocalyptic number.

10812181723103 is a deficient number, since it is larger than the sum of its proper divisors (25325617).

10812181723103 is an equidigital number, since it uses as much as digits as its factorization.

10812181723103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25325616.

The product of its (nonzero) digits is 16128, while the sum is 38.

Adding to 10812181723103 its reverse (30132718121801), we get a palindrome (40944899844904).

The spelling of 10812181723103 in words is "ten trillion, eight hundred twelve billion, one hundred eighty-one million, seven hundred twenty-three thousand, one hundred three".