2121302103313 has 4 divisors (see below), whose sum is σ = 2213532629568. Its totient is φ = 2029071577060.

The previous prime is 2121302103301. The next prime is 2121302103367. The reversal of 2121302103313 is 3133012031212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2121302103313 - 2²⁹ = 2120765232401 is a prime.

It is a super-2 number, since 2×2121302103313² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121302107313) 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, 46115263093 + ... + 46115263138.

It is an arithmetic number, because the mean of its divisors is an integer number (553383157392).

Almost surely, 2^{2121302103313} is an apocalyptic number.

2121302103313 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

2121302103313 is a deficient number, since it is larger than the sum of its proper divisors (92230526255).

2121302103313 is an equidigital number, since it uses as much as digits as its factorization.

2121302103313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92230526254.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121302103313 its reverse (3133012031212), we get a palindrome (5254314134525).

The spelling of 2121302103313 in words is "two trillion, one hundred twenty-one billion, three hundred two million, one hundred three thousand, three hundred thirteen".