321421230 has 64 divisors (see below), whose sum is σ = 923065920. Its totient is φ = 79118208.

The previous prime is 321421229. The next prime is 321421231. The reversal of 321421230 is 32124123.

It is an interprime number because it is at equal distance from previous prime (321421229) and next prime (321421231).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321421231) 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 31 ways as a sum of consecutive naturals, for example, 42277 + ... + 49296.

It is an arithmetic number, because the mean of its divisors is an integer number (14422905).

Almost surely, 2^321421230 is an apocalyptic number.

321421230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

321421230 is an abundant number, since it is smaller than the sum of its proper divisors (601644690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321421230 is a wasteful number, since it uses less digits than its factorization.

321421230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91602 (or 91596 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 321421230 is about 17928.2243961860. The cubic root of 321421230 is about 685.0014953703.

Adding to 321421230 its reverse (32124123), we get a palindrome (353545353).

The spelling of 321421230 in words is "three hundred twenty-one million, four hundred twenty-one thousand, two hundred thirty".