2120203113 has 16 divisors (see below), whose sum is σ = 3247027200. Its totient is φ = 1205454096.

The previous prime is 2120203097. The next prime is 2120203117. The reversal of 2120203113 is 3113020212.

It is not a de Polignac number, because 2120203113 - 2⁴ = 2120203097 is a prime.

It is a super-2 number, since 2×2120203113² = 8990522480749781538, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2120203092 and 2120203101.

It is not an unprimeable number, because it can be changed into a prime (2120203117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 249495 + ... + 257852.

It is an arithmetic number, because the mean of its divisors is an integer number (202939200).

Almost surely, 2^2120203113 is an apocalyptic number.

It is an amenable number.

2120203113 is a deficient number, since it is larger than the sum of its proper divisors (1126824087).

2120203113 is a wasteful number, since it uses less digits than its factorization.

2120203113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507556.

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

The square root of 2120203113 is about 46045.6633462914. The cubic root of 2120203113 is about 1284.6726824070.

Adding to 2120203113 its reverse (3113020212), we get a palindrome (5233223325).

The spelling of 2120203113 in words is "two billion, one hundred twenty million, two hundred three thousand, one hundred thirteen".