2103201613 has 4 divisors (see below), whose sum is σ = 2132012668. Its totient is φ = 2074390560.

The previous prime is 2103201593. The next prime is 2103201643. The reversal of 2103201613 is 3161023012.

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 696801609 + 1406400004 = 26397^2 + 37502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2103201613 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103201643) 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, 14405418 + ... + 14405563.

It is an arithmetic number, because the mean of its divisors is an integer number (533003167).

Almost surely, 2^2103201613 is an apocalyptic number.

It is an amenable number.

2103201613 is a deficient number, since it is larger than the sum of its proper divisors (28811055).

2103201613 is an equidigital number, since it uses as much as digits as its factorization.

2103201613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28811054.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 2103201613 is about 45860.6761070964. The cubic root of 2103201613 is about 1281.2296153235.

Adding to 2103201613 its reverse (3161023012), we get a palindrome (5264224625).

The spelling of 2103201613 in words is "two billion, one hundred three million, two hundred one thousand, six hundred thirteen".