321135305325451 has 8 divisors (see below), whose sum is σ = 332212878979200. Its totient is φ = 310057994500800.

The previous prime is 321135305325353. The next prime is 321135305325469. The reversal of 321135305325451 is 154523503531123.

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

It is a cyclic number.

It is not a de Polignac number, because 321135305325451 - 2¹⁹ = 321135304801163 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321135305325398 and 321135305325407.

It is not an unprimeable number, because it can be changed into a prime (321135305325151) 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, 63219850 + ... + 68110351.

It is an arithmetic number, because the mean of its divisors is an integer number (41526609872400).

Almost surely, 2^{321135305325451} is an apocalyptic number.

321135305325451 is a deficient number, since it is larger than the sum of its proper divisors (11077573653749).

321135305325451 is a wasteful number, since it uses less digits than its factorization.

321135305325451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131414549.

The product of its (nonzero) digits is 810000, while the sum is 43.

Adding to 321135305325451 its reverse (154523503531123), we get a palindrome (475658808856574).

The spelling of 321135305325451 in words is "three hundred twenty-one trillion, one hundred thirty-five billion, three hundred five million, three hundred twenty-five thousand, four hundred fifty-one".