2103120101 has 4 divisors (see below), whose sum is σ = 2103393600. Its totient is φ = 2102846604.

The previous prime is 2103120091. The next prime is 2103120137. The reversal of 2103120101 is 1010213012.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2103120101 - 2¹⁸ = 2102857957 is a prime.

It is a super-2 number, since 2×2103120101² = 8846228318460500402, which 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 (2103129101) 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 3 ways as a sum of consecutive naturals, for example, 124871 + ... + 140708.

It is an arithmetic number, because the mean of its divisors is an integer number (525848400).

Almost surely, 2^2103120101 is an apocalyptic number.

It is an amenable number.

2103120101 is a deficient number, since it is larger than the sum of its proper divisors (273499).

2103120101 is an equidigital number, since it uses as much as digits as its factorization.

2103120101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273498.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2103120101 is about 45859.7874068339. The cubic root of 2103120101 is about 1281.2130632667.

Adding to 2103120101 its reverse (1010213012), we get a palindrome (3113333113).

The spelling of 2103120101 in words is "two billion, one hundred three million, one hundred twenty thousand, one hundred one".