2120410321 has 4 divisors (see below), whose sum is σ = 2121104752. Its totient is φ = 2119715892.

The previous prime is 2120410307. The next prime is 2120410343. The reversal of 2120410321 is 1230140212.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2120410321 is a prime.

It is a super-2 number, since 2×2120410321² = 8992279858806646082, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2120410295 and 2120410304.

It is not an unprimeable number, because it can be changed into a prime (2120410351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 342615 + ... + 348748.

It is an arithmetic number, because the mean of its divisors is an integer number (530276188).

Almost surely, 2^2120410321 is an apocalyptic number.

It is an amenable number.

2120410321 is a deficient number, since it is larger than the sum of its proper divisors (694431).

2120410321 is an equidigital number, since it uses as much as digits as its factorization.

2120410321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694430.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2120410321 is about 46047.9133186293. The cubic root of 2120410321 is about 1284.7145315085.

Adding to 2120410321 its reverse (1230140212), we get a palindrome (3350550533).

The spelling of 2120410321 in words is "two billion, one hundred twenty million, four hundred ten thousand, three hundred twenty-one".