321313134 has 16 divisors (see below), whose sum is σ = 642817872. Its totient is φ = 107072448.

The previous prime is 321313133. The next prime is 321313147. The reversal of 321313134 is 431313123.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 321313134.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321313133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23172 + ... + 34344.

It is an arithmetic number, because the mean of its divisors is an integer number (40176117).

Almost surely, 2^321313134 is an apocalyptic number.

321313134 is an abundant number, since it is smaller than the sum of its proper divisors (321504738).

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

321313134 is a wasteful number, since it uses less digits than its factorization.

321313134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15971.

The product of its digits is 648, while the sum is 21.

The square root of 321313134 is about 17925.2094548432. The cubic root of 321313134 is about 684.9246966433.

Adding to 321313134 its reverse (431313123), we get a palindrome (752626257).

The spelling of 321313134 in words is "three hundred twenty-one million, three hundred thirteen thousand, one hundred thirty-four".