313300021 has 16 divisors (see below), whose sum is σ = 351172800. Its totient is φ = 278062848.

The previous prime is 313300007. The next prime is 313300027. The reversal of 313300021 is 120003313.

It is a cyclic number.

It is not a de Polignac number, because 313300021 - 2⁵ = 313299989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313299974 and 313300010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313300027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13810 + ... + 28588.

It is an arithmetic number, because the mean of its divisors is an integer number (21948300).

Almost surely, 2^313300021 is an apocalyptic number.

It is an amenable number.

313300021 is a deficient number, since it is larger than the sum of its proper divisors (37872779).

313300021 is a wasteful number, since it uses less digits than its factorization.

313300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14868.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 313300021 is about 17700.2830768324. The cubic root of 313300021 is about 679.1830016387.

Adding to 313300021 its reverse (120003313), we get a palindrome (433303334).

The spelling of 313300021 in words is "three hundred thirteen million, three hundred thousand, twenty-one".