321113081 has 8 divisors (see below), whose sum is σ = 322871424. Its totient is φ = 319359600.

The previous prime is 321113077. The next prime is 321113083. The reversal of 321113081 is 180311123.

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

It is a cyclic number.

It is not a de Polignac number, because 321113081 - 2² = 321113077 is a prime.

It is a super-3 number, since 3×321113081³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321113083) 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 7 ways as a sum of consecutive naturals, for example, 290576 + ... + 291678.

It is an arithmetic number, because the mean of its divisors is an integer number (40358928).

Almost surely, 2^321113081 is an apocalyptic number.

It is an amenable number.

321113081 is a deficient number, since it is larger than the sum of its proper divisors (1758343).

321113081 is a wasteful number, since it uses less digits than its factorization.

321113081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2431.

The product of its (nonzero) digits is 144, while the sum is 20.

The square root of 321113081 is about 17919.6283722626. The cubic root of 321113081 is about 684.7825199807.

The spelling of 321113081 in words is "three hundred twenty-one million, one hundred thirteen thousand, eighty-one".