2103113302021 has 4 divisors (see below), whose sum is σ = 2142794685132. Its totient is φ = 2063431918912.

The previous prime is 2103113302013. The next prime is 2103113302049. The reversal of 2103113302021 is 1202033113012.

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

It can be written as a sum of positive squares in 2 ways, for example, as 562858557121 + 1540254744900 = 750239^2 + 1241070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103113302021 - 2³ = 2103113302013 is a prime.

It is a super-2 number, since 2×2103113302021² (a number of 25 digits) contains 22 as substring.

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 2103113302021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103113302091) 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, 19840691476 + ... + 19840691581.

It is an arithmetic number, because the mean of its divisors is an integer number (535698671283).

Almost surely, 2^{2103113302021} is an apocalyptic number.

It is an amenable number.

2103113302021 is a deficient number, since it is larger than the sum of its proper divisors (39681383111).

2103113302021 is an equidigital number, since it uses as much as digits as its factorization.

2103113302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39681383110.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 2103113302021 its reverse (1202033113012), we get a palindrome (3305146415033).

The spelling of 2103113302021 in words is "two trillion, one hundred three billion, one hundred thirteen million, three hundred two thousand, twenty-one".