2103312513 has 16 divisors (see below), whose sum is σ = 2860191936. Its totient is φ = 1374479040.

The previous prime is 2103312509. The next prime is 2103312529. The reversal of 2103312513 is 3152133012.

It is not a de Polignac number, because 2103312513 - 2² = 2103312509 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2103312513.

It is not an unprimeable number, because it can be changed into a prime (2103312503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34006 + ... + 73232.

It is an arithmetic number, because the mean of its divisors is an integer number (178761996).

Almost surely, 2^2103312513 is an apocalyptic number.

It is an amenable number.

2103312513 is a deficient number, since it is larger than the sum of its proper divisors (756879423).

2103312513 is a wasteful number, since it uses less digits than its factorization.

2103312513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39584.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 2103312513 is about 45861.8851880295. The cubic root of 2103312513 is about 1281.2521343038.

Adding to 2103312513 its reverse (3152133012), we get a palindrome (5255445525).

The spelling of 2103312513 in words is "two billion, one hundred three million, three hundred twelve thousand, five hundred thirteen".