321431043220412 has 24 divisors (see below), whose sum is σ = 572301147530112. Its totient is φ = 157940251700400.

The previous prime is 321431043220403. The next prime is 321431043220451. The reversal of 321431043220412 is 214022340134123.

It is a happy number.

It is a congruent number.

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, 2977703414 + ... + 2977811357.

It is an arithmetic number, because the mean of its divisors is an integer number (23845881147088).

Almost surely, 2^{321431043220412} is an apocalyptic number.

It is an amenable number.

321431043220412 is a deficient number, since it is larger than the sum of its proper divisors (250870104309700).

321431043220412 is a wasteful number, since it uses less digits than its factorization.

321431043220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5955515009 (or 5955515007 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 321431043220412 its reverse (214022340134123), we get a palindrome (535453383354535).

The spelling of 321431043220412 in words is "three hundred twenty-one trillion, four hundred thirty-one billion, forty-three million, two hundred twenty thousand, four hundred twelve".