101211200100103 has 4 divisors (see below), whose sum is σ = 101279172700720. Its totient is φ = 101143227499488.

The previous prime is 101211200100067. The next prime is 101211200100167. The reversal of 101211200100103 is 301001002112101.

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 101211200100103 - 2⁴⁵ = 66026828011271 is a prime.

It is a super-3 number, since 3×101211200100103³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211204100103) 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 in 3 ways as a sum of consecutive naturals, for example, 33986298075 + ... + 33986301052.

It is an arithmetic number, because the mean of its divisors is an integer number (25319793175180).

Almost surely, 2^{101211200100103} is an apocalyptic number.

101211200100103 is a deficient number, since it is larger than the sum of its proper divisors (67972600617).

101211200100103 is an equidigital number, since it uses as much as digits as its factorization.

101211200100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67972600616.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 101211200100103 its reverse (301001002112101), we get a palindrome (402212202212204).

The spelling of 101211200100103 in words is "one hundred one trillion, two hundred eleven billion, two hundred million, one hundred thousand, one hundred three".