321002320130 has 16 divisors (see below), whose sum is σ = 578176260984. Its totient is φ = 128318242560.

The previous prime is 321002320117. The next prime is 321002320147. The reversal of 321002320130 is 31023200123.

It can be written as a sum of positive squares in 4 ways, for example, as 211849393441 + 109152926689 = 460271^2 + 330383^2 .

It is a junction number, because it is equal to n+sod(n) for n = 321002320099 and 321002320108.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10319381 + ... + 10350440.

Almost surely, 2^321002320130 is an apocalyptic number.

321002320130 is a deficient number, since it is larger than the sum of its proper divisors (257173940854).

321002320130 is a wasteful number, since it uses less digits than its factorization.

321002320130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20671381.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 321002320130 its reverse (31023200123), we get a palindrome (352025520253).

The spelling of 321002320130 in words is "three hundred twenty-one billion, two million, three hundred twenty thousand, one hundred thirty".