321134134551 has 8 divisors (see below), whose sum is σ = 428263503360. Its totient is φ = 214047094392.

The previous prime is 321134134523. The next prime is 321134134577. The reversal of 321134134551 is 155431431123.

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

It is not a de Polignac number, because 321134134551 - 2⁶ = 321134134487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321134134501) 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, 10564455 + ... + 10594808.

It is an arithmetic number, because the mean of its divisors is an integer number (53532937920).

Almost surely, 2^321134134551 is an apocalyptic number.

321134134551 is a deficient number, since it is larger than the sum of its proper divisors (107129368809).

321134134551 is a wasteful number, since it uses less digits than its factorization.

321134134551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21164325.

The product of its digits is 21600, while the sum is 33.

Adding to 321134134551 its reverse (155431431123), we get a palindrome (476565565674).

The spelling of 321134134551 in words is "three hundred twenty-one billion, one hundred thirty-four million, one hundred thirty-four thousand, five hundred fifty-one".