2120342113 has 4 divisors (see below), whose sum is σ = 2121031620. Its totient is φ = 2119652608.

The previous prime is 2120342093. The next prime is 2120342131. The reversal of 2120342113 is 3112430212.

It is a happy number.

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 1112089104 + 1008253009 = 33348^2 + 31753^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120342113 is a prime.

It is a super-2 number, since 2×2120342113² = 8991701352322609538, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2120342143) 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 3 ways as a sum of consecutive naturals, for example, 340120 + ... + 346297.

It is an arithmetic number, because the mean of its divisors is an integer number (530257905).

Almost surely, 2^2120342113 is an apocalyptic number.

It is an amenable number.

2120342113 is a deficient number, since it is larger than the sum of its proper divisors (689507).

2120342113 is an equidigital number, since it uses as much as digits as its factorization.

2120342113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689506.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2120342113 is about 46047.1726927941. The cubic root of 2120342113 is about 1284.7007560697.

Adding to 2120342113 its reverse (3112430212), we get a palindrome (5232772325).

The spelling of 2120342113 in words is "two billion, one hundred twenty million, three hundred forty-two thousand, one hundred thirteen".