2103540513 has 4 divisors (see below), whose sum is σ = 2804720688. Its totient is φ = 1402360340.

The previous prime is 2103540503. The next prime is 2103540541. The reversal of 2103540513 is 3150453012.

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 2103540513 - 2²¹ = 2101443361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2103540503) 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, 350590083 + ... + 350590088.

It is an arithmetic number, because the mean of its divisors is an integer number (701180172).

Almost surely, 2^2103540513 is an apocalyptic number.

It is an amenable number.

2103540513 is a deficient number, since it is larger than the sum of its proper divisors (701180175).

2103540513 is an equidigital number, since it uses as much as digits as its factorization.

2103540513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 701180174.

The product of its (nonzero) digits is 1800, while the sum is 24.

The square root of 2103540513 is about 45864.3708449162. The cubic root of 2103540513 is about 1281.2984287291.

Adding to 2103540513 its reverse (3150453012), we get a palindrome (5253993525).

The spelling of 2103540513 in words is "two billion, one hundred three million, five hundred forty thousand, five hundred thirteen".