2102313200321 has 4 divisors (see below), whose sum is σ = 2102341412052. Its totient is φ = 2102284988592.

The previous prime is 2102313200311. The next prime is 2102313200353. The reversal of 2102313200321 is 1230023132012.

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 348913494721 + 1753399705600 = 590689^2 + 1324160^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102313200321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102313200293 and 2102313200302.

It is not an unprimeable number, because it can be changed into a prime (2102313200311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13993790 + ... + 14143223.

It is an arithmetic number, because the mean of its divisors is an integer number (525585353013).

Almost surely, 2^{2102313200321} is an apocalyptic number.

It is an amenable number.

2102313200321 is a deficient number, since it is larger than the sum of its proper divisors (28211731).

2102313200321 is an equidigital number, since it uses as much as digits as its factorization.

2102313200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28211730.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2102313200321 its reverse (1230023132012), we get a palindrome (3332336332333).

The spelling of 2102313200321 in words is "two trillion, one hundred two billion, three hundred thirteen million, two hundred thousand, three hundred twenty-one".