2120340013 has 8 divisors (see below), whose sum is σ = 2342378880. Its totient is φ = 1903181280.

The previous prime is 2120339987. The next prime is 2120340029. The reversal of 2120340013 is 3100430212.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-2120340013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2120340613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1219120 + ... + 1220857.

It is an arithmetic number, because the mean of its divisors is an integer number (292797360).

Almost surely, 2^2120340013 is an apocalyptic number.

It is an amenable number.

2120340013 is a deficient number, since it is larger than the sum of its proper divisors (222038867).

2120340013 is a wasteful number, since it uses less digits than its factorization.

2120340013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2440067.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2120340013 is about 46047.1498900855. The cubic root of 2120340013 is about 1284.7003319443.

Adding to 2120340013 its reverse (3100430212), we get a palindrome (5220770225).

It can be divided in two parts, 21203 and 40013, that added together give a palindrome (61216).

The spelling of 2120340013 in words is "two billion, one hundred twenty million, three hundred forty thousand, thirteen".