2120321013 has 8 divisors (see below), whose sum is σ = 2892841248. Its totient is φ = 1380674064.

The previous prime is 2120321003. The next prime is 2120321041. The reversal of 2120321013 is 3101230212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120321013 - 2¹² = 2120316917 is a prime.

It is a super-2 number, since 2×2120321013² = 8991522396338692338, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120320983 and 2120321001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120321003) 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 7 ways as a sum of consecutive naturals, for example, 8218170 + ... + 8218427.

It is an arithmetic number, because the mean of its divisors is an integer number (361605156).

Almost surely, 2^2120321013 is an apocalyptic number.

It is an amenable number.

2120321013 is a deficient number, since it is larger than the sum of its proper divisors (772520235).

2120321013 is a wasteful number, since it uses less digits than its factorization.

2120321013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16436643.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2120321013 is about 46046.9435793517. The cubic root of 2120321013 is about 1284.6964946071.

Adding to 2120321013 its reverse (3101230212), we get a palindrome (5221551225).

The spelling of 2120321013 in words is "two billion, one hundred twenty million, three hundred twenty-one thousand, thirteen".