2195326321 has 4 divisors (see below), whose sum is σ = 2196087012. Its totient is φ = 2194565632.

The previous prime is 2195326313. The next prime is 2195326327. The reversal of 2195326321 is 1236235912.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 73342096 + 2121984225 = 8564^2 + 46065^2 .

It is a cyclic number.

It is not a de Polignac number, because 2195326321 - 2³ = 2195326313 is a prime.

It is a super-3 number, since 3×2195326321³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195326327) 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, 376000 + ... + 381793.

It is an arithmetic number, because the mean of its divisors is an integer number (549021753).

Almost surely, 2^2195326321 is an apocalyptic number.

It is an amenable number.

2195326321 is a deficient number, since it is larger than the sum of its proper divisors (760691).

2195326321 is an equidigital number, since it uses as much as digits as its factorization.

2195326321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 760690.

The product of its digits is 19440, while the sum is 34.

The square root of 2195326321 is about 46854.3095243116. The cubic root of 2195326321 is about 1299.6698019361.

The spelling of 2195326321 in words is "two billion, one hundred ninety-five million, three hundred twenty-six thousand, three hundred twenty-one".