313200021 has 8 divisors (see below), whose sum is σ = 421503264. Its totient is φ = 206848400.

The previous prime is 313200011. The next prime is 313200023. The reversal of 313200021 is 120002313.

It is a happy number.

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 313200021 - 2¹³ = 313191829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313200023) 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, 487530 + ... + 488171.

It is an arithmetic number, because the mean of its divisors is an integer number (52687908).

Almost surely, 2^313200021 is an apocalyptic number.

It is an amenable number.

313200021 is a deficient number, since it is larger than the sum of its proper divisors (108303243).

313200021 is a wasteful number, since it uses less digits than its factorization.

313200021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975811.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 313200021 is about 17697.4580378087. The cubic root of 313200021 is about 679.1107327559.

Adding to 313200021 its reverse (120002313), we get a palindrome (433202334).

The spelling of 313200021 in words is "three hundred thirteen million, two hundred thousand, twenty-one".