321210113 has 16 divisors (see below), whose sum is σ = 376836096. Its totient is φ = 268047360.

The previous prime is 321210091. The next prime is 321210139. The reversal of 321210113 is 311012123.

It is not a de Polignac number, because 321210113 - 2¹⁴ = 321193729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321210163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 192320 + ... + 193982.

It is an arithmetic number, because the mean of its divisors is an integer number (23552256).

Almost surely, 2^321210113 is an apocalyptic number.

It is an amenable number.

321210113 is a deficient number, since it is larger than the sum of its proper divisors (55625983).

321210113 is a wasteful number, since it uses less digits than its factorization.

321210113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 321210113 is about 17922.3355899838. The cubic root of 321210113 is about 684.8514875083.

Adding to 321210113 its reverse (311012123), we get a palindrome (632222236).

The spelling of 321210113 in words is "three hundred twenty-one million, two hundred ten thousand, one hundred thirteen".