2120321233313 has 4 divisors (see below), whose sum is σ = 2121539110548. Its totient is φ = 2119103356080.

The previous prime is 2120321233291. The next prime is 2120321233319. The reversal of 2120321233313 is 3133321230212.

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 956235604129 + 1164085629184 = 977873^2 + 1078928^2 .

It is a cyclic number.

It is not a de Polignac number, because 2120321233313 - 2²⁴ = 2120304456097 is a prime.

It is a super-2 number, since 2×2120321233313² (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 (2120321233319) 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, 608936006 + ... + 608939487.

It is an arithmetic number, because the mean of its divisors is an integer number (530384777637).

Almost surely, 2^{2120321233313} is an apocalyptic number.

It is an amenable number.

2120321233313 is a deficient number, since it is larger than the sum of its proper divisors (1217877235).

2120321233313 is a wasteful number, since it uses less digits than its factorization.

2120321233313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217877234.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 2120321233313 its reverse (3133321230212), we get a palindrome (5253642463525).

The spelling of 2120321233313 in words is "two trillion, one hundred twenty billion, three hundred twenty-one million, two hundred thirty-three thousand, three hundred thirteen".