2120103513 has 12 divisors (see below), whose sum is σ = 3340769328. Its totient is φ = 1284911160.

The previous prime is 2120103511. The next prime is 2120103631. The reversal of 2120103513 is 3153010212.

It is not a de Polignac number, because 2120103513 - 2¹ = 2120103511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120103511) 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 11 ways as a sum of consecutive naturals, for example, 10707495 + ... + 10707692.

It is an arithmetic number, because the mean of its divisors is an integer number (278397444).

Almost surely, 2^2120103513 is an apocalyptic number.

It is an amenable number.

2120103513 is a deficient number, since it is larger than the sum of its proper divisors (1220665815).

2120103513 is a wasteful number, since it uses less digits than its factorization.

2120103513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21415204 (or 21415201 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 2120103513 is about 46044.5817985135. The cubic root of 2120103513 is about 1284.6525655604.

Adding to 2120103513 its reverse (3153010212), we get a palindrome (5273113725).

The spelling of 2120103513 in words is "two billion, one hundred twenty million, one hundred three thousand, five hundred thirteen".