2143313280 has 192 divisors, whose sum is σ = 7457158800. Its totient is φ = 567226368.

The previous prime is 2143313251. The next prime is 2143313327. The reversal of 2143313280 is 823133412.

2143313280 is a `hidden beast` number, since 2 + 1 + 4 + 331 + 328 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 799302 + ... + 801978.

Almost surely, 2^2143313280 is an apocalyptic number.

2143313280 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 2143313280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3728579400).

2143313280 is an abundant number, since it is smaller than the sum of its proper divisors (5313845520).

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

2143313280 is a wasteful number, since it uses less digits than its factorization.

2143313280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2841 (or 2826 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 2143313280 is about 46295.9315707115. The cubic root of 2143313280 is about 1289.3234599254.

Adding to 2143313280 its reverse (823133412), we get a palindrome (2966446692).

The spelling of 2143313280 in words is "two billion, one hundred forty-three million, three hundred thirteen thousand, two hundred eighty".