2021241113 has 4 divisors (see below), whose sum is σ = 2023897908. Its totient is φ = 2018584320.

The previous prime is 2021241097. The next prime is 2021241119. The reversal of 2021241113 is 3111421202.

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 879003904 + 1142237209 = 29648^2 + 33797^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021241113 - 2⁴ = 2021241097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2021241091 and 2021241100.

It is not an unprimeable number, because it can be changed into a prime (2021241119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1327256 + ... + 1328777.

It is an arithmetic number, because the mean of its divisors is an integer number (505974477).

Almost surely, 2^2021241113 is an apocalyptic number.

It is an amenable number.

2021241113 is a deficient number, since it is larger than the sum of its proper divisors (2656795).

2021241113 is an equidigital number, since it uses as much as digits as its factorization.

2021241113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2656794.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2021241113 is about 44958.2151892176. The cubic root of 2021241113 is about 1264.3657061596.

Adding to 2021241113 its reverse (3111421202), we get a palindrome (5132662315).

The spelling of 2021241113 in words is "two billion, twenty-one million, two hundred forty-one thousand, one hundred thirteen".