2821201293 has 4 divisors (see below), whose sum is σ = 3761601728. Its totient is φ = 1880800860.

The previous prime is 2821201237. The next prime is 2821201351. The reversal of 2821201293 is 3921021282.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2821201293 - 2⁸ = 2821201037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2821201293.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2821201793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470200213 + ... + 470200218.

It is an arithmetic number, because the mean of its divisors is an integer number (940400432).

Almost surely, 2^2821201293 is an apocalyptic number.

It is an amenable number.

2821201293 is a deficient number, since it is larger than the sum of its proper divisors (940400435).

2821201293 is an equidigital number, since it uses as much as digits as its factorization.

2821201293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940400434.

The product of its (nonzero) digits is 3456, while the sum is 30.

The square root of 2821201293 is about 53114.9818130440. The cubic root of 2821201293 is about 1413.0082300708.

The spelling of 2821201293 in words is "two billion, eight hundred twenty-one million, two hundred one thousand, two hundred ninety-three".