321330053 has 8 divisors (see below), whose sum is σ = 353065440. Its totient is φ = 290015280.

The previous prime is 321330041. The next prime is 321330083. The reversal of 321330053 is 350033123.

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 321330053 - 2¹⁴ = 321313669 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321330083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103550 + ... + 106607.

It is an arithmetic number, because the mean of its divisors is an integer number (44133180).

Almost surely, 2^321330053 is an apocalyptic number.

It is an amenable number.

321330053 is a deficient number, since it is larger than the sum of its proper divisors (31735387).

321330053 is a wasteful number, since it uses less digits than its factorization.

321330053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210307.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 321330053 is about 17925.6813817495. The cubic root of 321330053 is about 684.9367181848.

Adding to 321330053 its reverse (350033123), we get a palindrome (671363176).

The spelling of 321330053 in words is "three hundred twenty-one million, three hundred thirty thousand, fifty-three".