321320134 has 8 divisors (see below), whose sum is σ = 507347640. Its totient is φ = 152204256.

The previous prime is 321320113. The next prime is 321320137. The reversal of 321320134 is 431023123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321320137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4227859 + ... + 4227934.

It is an arithmetic number, because the mean of its divisors is an integer number (63418455).

Almost surely, 2^321320134 is an apocalyptic number.

321320134 is a deficient number, since it is larger than the sum of its proper divisors (186027506).

321320134 is a wasteful number, since it uses less digits than its factorization.

321320134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8455814.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 321320134 is about 17925.4047095177. The cubic root of 321320134 is about 684.9296704394.

Adding to 321320134 its reverse (431023123), we get a palindrome (752343257).

The spelling of 321320134 in words is "three hundred twenty-one million, three hundred twenty thousand, one hundred thirty-four".