321481323 has 24 divisors (see below), whose sum is σ = 471664128. Its totient is φ = 210978432.

The previous prime is 321481319. The next prime is 321481331. The reversal of 321481323 is 323184123.

It is not a de Polignac number, because 321481323 - 2² = 321481319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321481333) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155565 + ... + 157617.

It is an arithmetic number, because the mean of its divisors is an integer number (19652672).

Almost surely, 2^321481323 is an apocalyptic number.

321481323 is a deficient number, since it is larger than the sum of its proper divisors (150182805).

321481323 is a wasteful number, since it uses less digits than its factorization.

321481323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2323 (or 2320 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 321481323 is about 17929.9002506986. The cubic root of 321481323 is about 685.0441820651.

The spelling of 321481323 in words is "three hundred twenty-one million, four hundred eighty-one thousand, three hundred twenty-three".