2102322321 has 24 divisors (see below), whose sum is σ = 3315621504. Its totient is φ = 1273030560.

The previous prime is 2102322301. The next prime is 2102322353. The reversal of 2102322321 is 1232232012.

2102322321 is a `hidden beast` number, since 21 + 0 + 2 + 322 + 321 = 666.

It is not a de Polignac number, because 2102322321 - 2⁷ = 2102322193 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2102322294 and 2102322303.

It is not an unprimeable number, because it can be changed into a prime (2102322301) 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 23 ways as a sum of consecutive naturals, for example, 113880 + ... + 131046.

It is an arithmetic number, because the mean of its divisors is an integer number (138150896).

Almost surely, 2^2102322321 is an apocalyptic number.

It is an amenable number.

2102322321 is a deficient number, since it is larger than the sum of its proper divisors (1213299183).

2102322321 is a wasteful number, since it uses less digits than its factorization.

2102322321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18421 (or 18418 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2102322321 is about 45851.0885476016. The cubic root of 2102322321 is about 1281.0510412269.

Adding to 2102322321 its reverse (1232232012), we get a palindrome (3334554333).

It can be divided in two parts, 2102 and 322321, that added together give a palindrome (324423).

The spelling of 2102322321 in words is "two billion, one hundred two million, three hundred twenty-two thousand, three hundred twenty-one".