2133121284 has 96 divisors (see below), whose sum is σ = 6524313600. Its totient is φ = 589796640.

The previous prime is 2133121271. The next prime is 2133121297. The reversal of 2133121284 is 4821213312.

It is an interprime number because it is at equal distance from previous prime (2133121271) and next prime (2133121297).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22074 + ... + 68945.

It is an arithmetic number, because the mean of its divisors is an integer number (67961600).

Almost surely, 2^2133121284 is an apocalyptic number.

It is an amenable number.

2133121284 is an abundant number, since it is smaller than the sum of its proper divisors (4391192316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2133121284 is a wasteful number, since it uses less digits than its factorization.

2133121284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91070 (or 91062 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2133121284 is about 46185.7259767561. The cubic root of 2133121284 is about 1287.2765256900.

Adding to 2133121284 its reverse (4821213312), we get a palindrome (6954334596).

The spelling of 2133121284 in words is "two billion, one hundred thirty-three million, one hundred twenty-one thousand, two hundred eighty-four".