321054200135 has 4 divisors (see below), whose sum is σ = 385265040168. Its totient is φ = 256843360104.

The previous prime is 321054200113. The next prime is 321054200183. The reversal of 321054200135 is 531002450123.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321054200135 - 2¹⁸ = 321053937991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32105420009 + ... + 32105420018.

It is an arithmetic number, because the mean of its divisors is an integer number (96316260042).

Almost surely, 2^321054200135 is an apocalyptic number.

321054200135 is a deficient number, since it is larger than the sum of its proper divisors (64210840033).

321054200135 is an equidigital number, since it uses as much as digits as its factorization.

321054200135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64210840032.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 321054200135 its reverse (531002450123), we get a palindrome (852056650258).

The spelling of 321054200135 in words is "three hundred twenty-one billion, fifty-four million, two hundred thousand, one hundred thirty-five".