2103211303313 has 4 divisors (see below), whose sum is σ = 2103217945140. Its totient is φ = 2103204661488.

The previous prime is 2103211303309. The next prime is 2103211303363. The reversal of 2103211303313 is 3133031123012.

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 118699542784 + 1984511760529 = 344528^2 + 1408727^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103211303313 - 2² = 2103211303309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2103211303363) 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, 2820818 + ... + 3487611.

It is an arithmetic number, because the mean of its divisors is an integer number (525804486285).

Almost surely, 2^{2103211303313} is an apocalyptic number.

It is an amenable number.

2103211303313 is a deficient number, since it is larger than the sum of its proper divisors (6641827).

2103211303313 is an equidigital number, since it uses as much as digits as its factorization.

2103211303313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641826.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 2103211303313 its reverse (3133031123012), we get a palindrome (5236242426325).

The spelling of 2103211303313 in words is "two trillion, one hundred three billion, two hundred eleven million, three hundred three thousand, three hundred thirteen".