321310130212 has 12 divisors (see below), whose sum is σ = 562302653836. Its totient is φ = 160652229120.

The previous prime is 321310130189. The next prime is 321310130231. The reversal of 321310130212 is 212031013123.

It can be written as a sum of positive squares in 2 ways, for example, as 219233714176 + 102076416036 = 468224^2 + 319494^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 321310130212.

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, 442989 + ... + 915892.

Almost surely, 2^321310130212 is an apocalyptic number.

It is an amenable number.

321310130212 is a deficient number, since it is larger than the sum of its proper divisors (240992523624).

321310130212 is a wasteful number, since it uses less digits than its factorization.

321310130212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417998 (or 1417996 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 321310130212 its reverse (212031013123), we get a palindrome (533341143335).

The spelling of 321310130212 in words is "three hundred twenty-one billion, three hundred ten million, one hundred thirty thousand, two hundred twelve".