2120113121 has 8 divisors (see below), whose sum is σ = 2506537920. Its totient is φ = 1754576208.

The previous prime is 2120113117. The next prime is 2120113123. The reversal of 2120113121 is 1213110212.

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

It is not a de Polignac number, because 2120113121 - 2² = 2120113117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120113096 and 2120113105.

It is not an unprimeable number, because it can be changed into a prime (2120113123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5221751 + ... + 5222156.

It is an arithmetic number, because the mean of its divisors is an integer number (313317240).

Almost surely, 2^2120113121 is an apocalyptic number.

It is an amenable number.

2120113121 is a deficient number, since it is larger than the sum of its proper divisors (386424799).

2120113121 is a wasteful number, since it uses less digits than its factorization.

2120113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10443943.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2120113121 is about 46044.6861320609. The cubic root of 2120113121 is about 1284.6545061768.

Adding to 2120113121 its reverse (1213110212), we get a palindrome (3333223333).

The spelling of 2120113121 in words is "two billion, one hundred twenty million, one hundred thirteen thousand, one hundred twenty-one".