2103512313 has 16 divisors (see below), whose sum is σ = 3279896576. Its totient is φ = 1174052880.

The previous prime is 2103512297. The next prime is 2103512317. The reversal of 2103512313 is 3132153012.

It is not a de Polignac number, because 2103512313 - 2⁴ = 2103512297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 2103512313.

It is not an unprimeable number, because it can be changed into a prime (2103512317) 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 15 ways as a sum of consecutive naturals, for example, 1163833 + ... + 1165638.

It is an arithmetic number, because the mean of its divisors is an integer number (204993536).

Almost surely, 2^2103512313 is an apocalyptic number.

It is an amenable number.

2103512313 is a deficient number, since it is larger than the sum of its proper divisors (1176384263).

2103512313 is a wasteful number, since it uses less digits than its factorization.

2103512313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2329524.

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

The square root of 2103512313 is about 45864.0634157071. The cubic root of 2103512313 is about 1281.2927030209.

Adding to 2103512313 its reverse (3132153012), we get a palindrome (5235665325).

The spelling of 2103512313 in words is "two billion, one hundred three million, five hundred twelve thousand, three hundred thirteen".