321031404123212 has 6 divisors (see below), whose sum is σ = 561804957215628. Its totient is φ = 160515702061604.

The previous prime is 321031404123181. The next prime is 321031404123229. The reversal of 321031404123212 is 212321404130123.

It is a happy number.

It is a super-2 number, since 2×321031404123212² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40128925515398 + ... + 40128925515405.

It is an arithmetic number, because the mean of its divisors is an integer number (93634159535938).

Almost surely, 2^{321031404123212} is an apocalyptic number.

It is an amenable number.

321031404123212 is a deficient number, since it is larger than the sum of its proper divisors (240773553092416).

321031404123212 is a wasteful number, since it uses less digits than its factorization.

321031404123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80257851030807 (or 80257851030805 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 321031404123212 its reverse (212321404130123), we get a palindrome (533352808253335).

The spelling of 321031404123212 in words is "three hundred twenty-one trillion, thirty-one billion, four hundred four million, one hundred twenty-three thousand, two hundred twelve".