2133021280 has 192 divisors, whose sum is σ = 5795375040. Its totient is φ = 734920704.

The previous prime is 2133021239. The next prime is 2133021281. The reversal of 2133021280 is 821203312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2133021281) 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, 6329272 + ... + 6329608.

It is an arithmetic number, because the mean of its divisors is an integer number (30184245).

Almost surely, 2^2133021280 is an apocalyptic number.

2133021280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2133021280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2897687520).

2133021280 is an abundant number, since it is smaller than the sum of its proper divisors (3662353760).

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

2133021280 is a wasteful number, since it uses less digits than its factorization.

2133021280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561 (or 553 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 2133021280 is about 46184.6433352040. The cubic root of 2133021280 is about 1287.2564088758.

Adding to 2133021280 its reverse (821203312), we get a palindrome (2954224592).

The spelling of 2133021280 in words is "two billion, one hundred thirty-three million, twenty-one thousand, two hundred eighty".