321020130255 has 32 divisors (see below), whose sum is σ = 560757109248. Its totient is φ = 155526384000.

The previous prime is 321020130203. The next prime is 321020130281. The reversal of 321020130255 is 552031020123.

It is a happy number.

It is not a de Polignac number, because 321020130255 - 2⁶ = 321020130191 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 533059 + ... + 962388.

It is an arithmetic number, because the mean of its divisors is an integer number (17523659664).

Almost surely, 2^321020130255 is an apocalyptic number.

321020130255 is a deficient number, since it is larger than the sum of its proper divisors (239736978993).

321020130255 is a wasteful number, since it uses less digits than its factorization.

321020130255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496767.

The product of its (nonzero) digits is 1800, while the sum is 24.

Adding to 321020130255 its reverse (552031020123), we get a palindrome (873051150378).

The spelling of 321020130255 in words is "three hundred twenty-one billion, twenty million, one hundred thirty thousand, two hundred fifty-five".