321020223130 has 8 divisors (see below), whose sum is σ = 577836401652. Its totient is φ = 128408089248.

The previous prime is 321020223091. The next prime is 321020223131. The reversal of 321020223130 is 31322020123.

It can be written as a sum of positive squares in 2 ways, for example, as 315312571729 + 5707651401 = 561527^2 + 75549^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 321020223098 and 321020223107.

It is not an unprimeable number, because it can be changed into a prime (321020223131) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 16051011147 + ... + 16051011166.

Almost surely, 2^321020223130 is an apocalyptic number.

321020223130 is a deficient number, since it is larger than the sum of its proper divisors (256816178522).

321020223130 is a wasteful number, since it uses less digits than its factorization.

321020223130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32102022320.

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

Adding to 321020223130 its reverse (31322020123), we get a palindrome (352342243253).

The spelling of 321020223130 in words is "three hundred twenty-one billion, twenty million, two hundred twenty-three thousand, one hundred thirty".