313211312132321 has 8 divisors (see below), whose sum is σ = 331636102126560. Its totient is φ = 294786588267328.

The previous prime is 313211312132291. The next prime is 313211312132339. The reversal of 313211312132321 is 123231213112313.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313211312132321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313214312132321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6610871 + ... + 25886796.

It is an arithmetic number, because the mean of its divisors is an integer number (41454512765820).

Almost surely, 2^{313211312132321} is an apocalyptic number.

It is an amenable number.

313211312132321 is a deficient number, since it is larger than the sum of its proper divisors (18424789994239).

313211312132321 is a wasteful number, since it uses less digits than its factorization.

313211312132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33064623.

The product of its digits is 3888, while the sum is 29.

Adding to 313211312132321 its reverse (123231213112313), we get a palindrome (436442525244634).

The spelling of 313211312132321 in words is "three hundred thirteen trillion, two hundred eleven billion, three hundred twelve million, one hundred thirty-two thousand, three hundred twenty-one".