321443132 has 6 divisors (see below), whose sum is σ = 562525488. Its totient is φ = 160721564.

The previous prime is 321443119. The next prime is 321443137. The reversal of 321443132 is 231344123.

It is a junction number, because it is equal to n+sod(n) for n = 321443098 and 321443107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321443137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40180388 + ... + 40180395.

It is an arithmetic number, because the mean of its divisors is an integer number (93754248).

Almost surely, 2^321443132 is an apocalyptic number.

It is an amenable number.

321443132 is a deficient number, since it is larger than the sum of its proper divisors (241082356).

321443132 is a wasteful number, since it uses less digits than its factorization.

321443132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80360787 (or 80360785 counting only the distinct ones).

The product of its digits is 1728, while the sum is 23.

The square root of 321443132 is about 17928.8352103532. The cubic root of 321443132 is about 685.0170539381.

Adding to 321443132 its reverse (231344123), we get a palindrome (552787255).

Subtracting from 321443132 its reverse (231344123), we obtain a palindrome (90099009).

The spelling of 321443132 in words is "three hundred twenty-one million, four hundred forty-three thousand, one hundred thirty-two".