321423055 has 8 divisors (see below), whose sum is σ = 390042000. Its totient is φ = 254248896.

The previous prime is 321423049. The next prime is 321423103. The reversal of 321423055 is 550324123.

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 321423055 - 2²⁷ = 187205327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 360705 + ... + 361594.

It is an arithmetic number, because the mean of its divisors is an integer number (48755250).

Almost surely, 2^321423055 is an apocalyptic number.

321423055 is a deficient number, since it is larger than the sum of its proper divisors (68618945).

321423055 is an equidigital number, since it uses as much as digits as its factorization.

321423055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722393.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 321423055 is about 17928.2752935133. The cubic root of 321423055 is about 685.0027918262.

Adding to 321423055 its reverse (550324123), we get a palindrome (871747178).

The spelling of 321423055 in words is "three hundred twenty-one million, four hundred twenty-three thousand, fifty-five".