2102002313 has 4 divisors (see below), whose sum is σ = 2141662788. Its totient is φ = 2062341840.

The previous prime is 2102002303. The next prime is 2102002339. The reversal of 2102002313 is 3132002012.

It is a happy number.

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 1880349769 + 221652544 = 43363^2 + 14888^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102002313 - 2⁶ = 2102002249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2102002303) 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 3 ways as a sum of consecutive naturals, for example, 19830158 + ... + 19830263.

It is an arithmetic number, because the mean of its divisors is an integer number (535415697).

Almost surely, 2^2102002313 is an apocalyptic number.

It is an amenable number.

2102002313 is a deficient number, since it is larger than the sum of its proper divisors (39660475).

2102002313 is an equidigital number, since it uses as much as digits as its factorization.

2102002313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39660474.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 2102002313 is about 45847.5987702737. The cubic root of 2102002313 is about 1280.9860389229.

Adding to 2102002313 its reverse (3132002012), we get a palindrome (5234004325).

The spelling of 2102002313 in words is "two billion, one hundred two million, two thousand, three hundred thirteen".