321432141 has 16 divisors (see below), whose sum is σ = 455112000. Its totient is φ = 201093888.

The previous prime is 321432131. The next prime is 321432161. The reversal of 321432141 is 141234123.

It is not a de Polignac number, because 321432141 - 2¹⁷ = 321301069 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321432131) 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, 8770 + ... + 26828.

It is an arithmetic number, because the mean of its divisors is an integer number (28444500).

Almost surely, 2^321432141 is an apocalyptic number.

It is an amenable number.

321432141 is a deficient number, since it is larger than the sum of its proper divisors (133679859).

321432141 is a wasteful number, since it uses less digits than its factorization.

321432141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18428.

The product of its digits is 576, while the sum is 21.

The square root of 321432141 is about 17928.5286903304. The cubic root of 321432141 is about 685.0092463277.

Adding to 321432141 its reverse (141234123), we get a palindrome (462666264).

The spelling of 321432141 in words is "three hundred twenty-one million, four hundred thirty-two thousand, one hundred forty-one".