321212134 has 4 divisors (see below), whose sum is σ = 481818204. Its totient is φ = 160606066.

The previous prime is 321212077. The next prime is 321212159. The reversal of 321212134 is 431212123.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 431212123 = 17 ⋅25365419.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80303032 + ... + 80303035.

It is an arithmetic number, because the mean of its divisors is an integer number (120454551).

Almost surely, 2^321212134 is an apocalyptic number.

321212134 is a deficient number, since it is larger than the sum of its proper divisors (160606070).

321212134 is a wasteful number, since it uses less digits than its factorization.

321212134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160606069.

The product of its digits is 288, while the sum is 19.

The square root of 321212134 is about 17922.3919720555. The cubic root of 321212134 is about 684.8529238288.

Adding to 321212134 its reverse (431212123), we get a palindrome (752424257).

The spelling of 321212134 in words is "three hundred twenty-one million, two hundred twelve thousand, one hundred thirty-four".