321403134 has 16 divisors (see below), whose sum is σ = 692253072. Its totient is φ = 98893248.

The previous prime is 321403123. The next prime is 321403151. The reversal of 321403134 is 431304123.

It is a self number, because there is not a number n which added to its sum of digits gives 321403134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2060199 + ... + 2060354.

It is an arithmetic number, because the mean of its divisors is an integer number (43265817).

Almost surely, 2^321403134 is an apocalyptic number.

321403134 is an abundant number, since it is smaller than the sum of its proper divisors (370849938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321403134 is a wasteful number, since it uses less digits than its factorization.

321403134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4120571.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 321403134 is about 17927.7197099910. The cubic root of 321403134 is about 684.9886399452.

Adding to 321403134 its reverse (431304123), we get a palindrome (752707257).

The spelling of 321403134 in words is "three hundred twenty-one million, four hundred three thousand, one hundred thirty-four".