313021055 has 8 divisors (see below), whose sum is σ = 375748800. Its totient is φ = 250334496.

The previous prime is 313021039. The next prime is 313021057. The reversal of 313021055 is 550120313.

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 313021055 - 2⁴ = 313021039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313021057) 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, 10106 + ... + 26984.

It is an arithmetic number, because the mean of its divisors is an integer number (46968600).

Almost surely, 2^313021055 is an apocalyptic number.

313021055 is a deficient number, since it is larger than the sum of its proper divisors (62727745).

313021055 is a wasteful number, since it uses less digits than its factorization.

313021055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20593.

The product of its (nonzero) digits is 450, while the sum is 20.

The square root of 313021055 is about 17692.4010524293. The cubic root of 313021055 is about 678.9813576176.

Adding to 313021055 its reverse (550120313), we get a palindrome (863141368).

The spelling of 313021055 in words is "three hundred thirteen million, twenty-one thousand, fifty-five".