321231130 has 32 divisors (see below), whose sum is σ = 634091328. Its totient is φ = 116198400.

The previous prime is 321231103. The next prime is 321231137. The reversal of 321231130 is 31132123.

It is not an unprimeable number, because it can be changed into a prime (321231137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13665 + ... + 28795.

It is an arithmetic number, because the mean of its divisors is an integer number (19815354).

Almost surely, 2^321231130 is an apocalyptic number.

321231130 is a deficient number, since it is larger than the sum of its proper divisors (312860198).

321231130 is a wasteful number, since it uses less digits than its factorization.

321231130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15342.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 321231130 is about 17922.9219158038. The cubic root of 321231130 is about 684.8664239515.

Adding to 321231130 its reverse (31132123), we get a palindrome (352363253).

The spelling of 321231130 in words is "three hundred twenty-one million, two hundred thirty-one thousand, one hundred thirty".