326381121 has 12 divisors (see below), whose sum is σ = 514297680. Its totient is φ = 197806680.

The previous prime is 326381119. The next prime is 326381131. The reversal of 326381121 is 121183623.

It is a happy number.

326381121 is a `hidden beast` number, since 3 + 2 + 638 + 1 + 1 + 21 = 666.

It is not a de Polignac number, because 326381121 - 2¹ = 326381119 is a prime.

It is a super-2 number, since 2×326381121² = 213049272290433282, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (326381101) 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 11 ways as a sum of consecutive naturals, for example, 1648291 + ... + 1648488.

It is an arithmetic number, because the mean of its divisors is an integer number (42858140).

Almost surely, 2^326381121 is an apocalyptic number.

It is an amenable number.

326381121 is a deficient number, since it is larger than the sum of its proper divisors (187916559).

326381121 is a wasteful number, since it uses less digits than its factorization.

326381121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3296796 (or 3296793 counting only the distinct ones).

The product of its digits is 1728, while the sum is 27.

The square root of 326381121 is about 18066.0211723556. The cubic root of 326381121 is about 688.5069733473.

The spelling of 326381121 in words is "three hundred twenty-six million, three hundred eighty-one thousand, one hundred twenty-one".