2120100103 has 8 divisors (see below), whose sum is σ = 2315975040. Its totient is φ = 1924748280.

The previous prime is 2120100077. The next prime is 2120100109. The reversal of 2120100103 is 3010010212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120100103 is a prime.

It is a super-3 number, since 3×2120100103³ (a number of 29 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 self number, because there is not a number n which added to its sum of digits gives 2120100103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120100109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122275 + ... + 138532.

It is an arithmetic number, because the mean of its divisors is an integer number (289496880).

Almost surely, 2^2120100103 is an apocalyptic number.

2120100103 is a deficient number, since it is larger than the sum of its proper divisors (195874937).

2120100103 is a wasteful number, since it uses less digits than its factorization.

2120100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261557.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 2120100103 is about 46044.5447691689. The cubic root of 2120100103 is about 1284.6518768098.

Adding to 2120100103 its reverse (3010010212), we get a palindrome (5130110315).

The spelling of 2120100103 in words is "two billion, one hundred twenty million, one hundred thousand, one hundred three".