313122212031021 has 8 divisors (see below), whose sum is σ = 424572490889760. Its totient is φ = 205210037263152.

The previous prime is 313122212031001. The next prime is 313122212031059. The reversal of 313122212031021 is 120130212221313.

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

It is not a de Polignac number, because 313122212031021 - 2¹⁹ = 313122211506733 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313122212030982 and 313122212031000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313122212031001) 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, 884526022510 + ... + 884526022863.

It is an arithmetic number, because the mean of its divisors is an integer number (53071561361220).

Almost surely, 2^{313122212031021} is an apocalyptic number.

It is an amenable number.

313122212031021 is a deficient number, since it is larger than the sum of its proper divisors (111450278858739).

313122212031021 is a wasteful number, since it uses less digits than its factorization.

313122212031021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769052045435.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 313122212031021 its reverse (120130212221313), we get a palindrome (433252424252334).

The spelling of 313122212031021 in words is "three hundred thirteen trillion, one hundred twenty-two billion, two hundred twelve million, thirty-one thousand, twenty-one".