313332312021 has 4 divisors (see below), whose sum is σ = 417776416032. Its totient is φ = 208888208012.

The previous prime is 313332312017. The next prime is 313332312031. The reversal of 313332312021 is 120213233313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313332312021 - 2² = 313332312017 is a prime.

It is a super-2 number, since 2×313332312021² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 313332311982 and 313332312000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313332312001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52222052001 + ... + 52222052006.

It is an arithmetic number, because the mean of its divisors is an integer number (104444104008).

Almost surely, 2^313332312021 is an apocalyptic number.

It is an amenable number.

313332312021 is a deficient number, since it is larger than the sum of its proper divisors (104444104011).

313332312021 is a wasteful number, since it uses less digits than its factorization.

313332312021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104444104010.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 313332312021 its reverse (120213233313), we get a palindrome (433545545334).

The spelling of 313332312021 in words is "three hundred thirteen billion, three hundred thirty-two million, three hundred twelve thousand, twenty-one".