313212322021 has 8 divisors (see below), whose sum is σ = 323348096000. Its totient is φ = 303078557520.

The previous prime is 313212322019. The next prime is 313212322043. The reversal of 313212322021 is 120223212313.

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

It is a cyclic number.

It is not a de Polignac number, because 313212322021 - 2¹ = 313212322019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313212321983 and 313212322001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313212322001) 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, 182346 + ... + 812203.

It is an arithmetic number, because the mean of its divisors is an integer number (40418512000).

Almost surely, 2^313212322021 is an apocalyptic number.

313212322021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

313212322021 is a deficient number, since it is larger than the sum of its proper divisors (10135773979).

313212322021 is a wasteful number, since it uses less digits than its factorization.

313212322021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1004739.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 313212322021 its reverse (120223212313), we get a palindrome (433435534334).

The spelling of 313212322021 in words is "three hundred thirteen billion, two hundred twelve million, three hundred twenty-two thousand, twenty-one".