2113332121 has 4 divisors (see below), whose sum is σ = 2119219200. Its totient is φ = 2107445044.

The previous prime is 2113332107. The next prime is 2113332131. The reversal of 2113332121 is 1212333112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2113332121 - 2²¹ = 2111234969 is a prime.

It is a super-3 number, since 3×2113332121³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113332131) 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, 2943001 + ... + 2943718.

It is an arithmetic number, because the mean of its divisors is an integer number (529804800).

Almost surely, 2^2113332121 is an apocalyptic number.

It is an amenable number.

2113332121 is a deficient number, since it is larger than the sum of its proper divisors (5887079).

2113332121 is an equidigital number, since it uses as much as digits as its factorization.

2113332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5887078.

The product of its digits is 216, while the sum is 19.

The square root of 2113332121 is about 45970.9921689754. The cubic root of 2113332121 is about 1283.2834242842.

Adding to 2113332121 its reverse (1212333112), we get a palindrome (3325665233).

Subtracting from 2113332121 its reverse (1212333112), we obtain a palindrome (900999009).

The spelling of 2113332121 in words is "two billion, one hundred thirteen million, three hundred thirty-two thousand, one hundred twenty-one".