313010021 has 8 divisors (see below), whose sum is σ = 324298080. Its totient is φ = 301754992.

The previous prime is 313010011. The next prime is 313010039. The reversal of 313010021 is 120010313.

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-313010021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313009984 and 313010011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313010011) 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 7 ways as a sum of consecutive naturals, for example, 11906 + ... + 27708.

It is an arithmetic number, because the mean of its divisors is an integer number (40537260).

Almost surely, 2^313010021 is an apocalyptic number.

It is an amenable number.

313010021 is a deficient number, since it is larger than the sum of its proper divisors (11288059).

313010021 is a wasteful number, since it uses less digits than its factorization.

313010021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16515.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 313010021 is about 17692.0892208919. The cubic root of 313010021 is about 678.9733794872.

Adding to 313010021 its reverse (120010313), we get a palindrome (433020334).

The spelling of 313010021 in words is "three hundred thirteen million, ten thousand, twenty-one".