2120004321 has 8 divisors (see below), whose sum is σ = 2827659744. Its totient is φ = 1412842560.

The previous prime is 2120004319. The next prime is 2120004353. The reversal of 2120004321 is 1234000212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2120004321 - 2¹ = 2120004319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2120004321.

It is not an unprimeable number, because it can be changed into a prime (2120004301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 113275 + ... + 130656.

It is an arithmetic number, because the mean of its divisors is an integer number (353457468).

Almost surely, 2^2120004321 is an apocalyptic number.

It is an amenable number.

2120004321 is a deficient number, since it is larger than the sum of its proper divisors (707655423).

2120004321 is a wasteful number, since it uses less digits than its factorization.

2120004321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246831.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 2120004321 is about 46043.5046559230. The cubic root of 2120004321 is about 1284.6325304939.

Adding to 2120004321 its reverse (1234000212), we get a palindrome (3354004533).

The spelling of 2120004321 in words is "two billion, one hundred twenty million, four thousand, three hundred twenty-one".