2102103013 has 4 divisors (see below), whose sum is σ = 2141765388. Its totient is φ = 2062440640.

The previous prime is 2102103011. The next prime is 2102103043. The reversal of 2102103013 is 3103012012.

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 1801323364 + 300779649 = 42442^2 + 17343^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102103013 - 2¹ = 2102103011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102102984 and 2102103002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102103011) 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, 19831108 + ... + 19831213.

It is an arithmetic number, because the mean of its divisors is an integer number (535441347).

Almost surely, 2^2102103013 is an apocalyptic number.

It is an amenable number.

2102103013 is a deficient number, since it is larger than the sum of its proper divisors (39662375).

2102103013 is an equidigital number, since it uses as much as digits as its factorization.

2102103013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39662374.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 2102103013 is about 45848.6969607643. The cubic root of 2102103013 is about 1281.0064945354.

Adding to 2102103013 its reverse (3103012012), we get a palindrome (5205115025).

The spelling of 2102103013 in words is "two billion, one hundred two million, one hundred three thousand, thirteen".