321140001 has 32 divisors (see below), whose sum is σ = 529079040. Its totient is φ = 168724224.

The previous prime is 321139993. The next prime is 321140089. The reversal of 321140001 is 100041123.

It is a happy number.

It is not a de Polignac number, because 321140001 - 2³ = 321139993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (321141001) 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 31 ways as a sum of consecutive naturals, for example, 71251 + ... + 75623.

It is an arithmetic number, because the mean of its divisors is an integer number (16533720).

Almost surely, 2^321140001 is an apocalyptic number.

It is an amenable number.

321140001 is a deficient number, since it is larger than the sum of its proper divisors (207939039).

321140001 is a wasteful number, since it uses less digits than its factorization.

321140001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 321140001 is about 17920.3794881693. The cubic root of 321140001 is about 684.8016553273.

Adding to 321140001 its reverse (100041123), we get a palindrome (421181124).

The spelling of 321140001 in words is "three hundred twenty-one million, one hundred forty thousand, one".