321422133 has 8 divisors (see below), whose sum is σ = 429582496. Its totient is φ = 213771600.

The previous prime is 321422117. The next prime is 321422137. The reversal of 321422133 is 331224123.

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

It is not a de Polignac number, because 321422133 - 2⁴ = 321422117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321422137) 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, 125983 + ... + 128508.

It is an arithmetic number, because the mean of its divisors is an integer number (53697812).

Almost surely, 2^321422133 is an apocalyptic number.

It is an amenable number.

321422133 is a deficient number, since it is larger than the sum of its proper divisors (108160363).

321422133 is a wasteful number, since it uses less digits than its factorization.

321422133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254915.

The product of its digits is 864, while the sum is 21.

The square root of 321422133 is about 17928.2495799227. The cubic root of 321422133 is about 685.0021368502.

Adding to 321422133 its reverse (331224123), we get a palindrome (652646256).

The spelling of 321422133 in words is "three hundred twenty-one million, four hundred twenty-two thousand, one hundred thirty-three".