2121434133 has 32 divisors (see below), whose sum is σ = 3484083456. Its totient is φ = 1118112768.

The previous prime is 2121434099. The next prime is 2121434167. The reversal of 2121434133 is 3314341212.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2121434099) and next prime (2121434167).

It is not a de Polignac number, because 2121434133 - 2¹⁶ = 2121368597 is a prime.

It is a super-3 number, since 3×2121434133³ (a number of 29 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121434173) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 482935 + ... + 487307.

It is an arithmetic number, because the mean of its divisors is an integer number (108877608).

Almost surely, 2^2121434133 is an apocalyptic number.

It is an amenable number.

2121434133 is a deficient number, since it is larger than the sum of its proper divisors (1362649323).

2121434133 is a wasteful number, since it uses less digits than its factorization.

2121434133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6173.

The product of its digits is 1728, while the sum is 24.

The square root of 2121434133 is about 46059.0287891527. The cubic root of 2121434133 is about 1284.9212673629.

Adding to 2121434133 its reverse (3314341212), we get a palindrome (5435775345).

The spelling of 2121434133 in words is "two billion, one hundred twenty-one million, four hundred thirty-four thousand, one hundred thirty-three".