2121113133 has 12 divisors (see below), whose sum is σ = 3065064288. Its totient is φ = 1413505800.

The previous prime is 2121113131. The next prime is 2121113177. The reversal of 2121113133 is 3313111212.

It is not a de Polignac number, because 2121113133 - 2¹ = 2121113131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121113131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23235 + ... + 69152.

It is an arithmetic number, because the mean of its divisors is an integer number (255422024).

Almost surely, 2^2121113133 is an apocalyptic number.

It is an amenable number.

2121113133 is a deficient number, since it is larger than the sum of its proper divisors (943951155).

2121113133 is a wasteful number, since it uses less digits than its factorization.

2121113133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94944 (or 94941 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 2121113133 is about 46055.5439985242. The cubic root of 2121113133 is about 1284.8564557770.

Adding to 2121113133 its reverse (3313111212), we get a palindrome (5434224345).

The spelling of 2121113133 in words is "two billion, one hundred twenty-one million, one hundred thirteen thousand, one hundred thirty-three".