313243055 has 4 divisors (see below), whose sum is σ = 375891672. Its totient is φ = 250594440.

The previous prime is 313243043. The next prime is 313243057. The reversal of 313243055 is 550342313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550342313 = 7393 ⋅74441.

It is not a de Polignac number, because 313243055 - 2⁴ = 313243039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313243057) 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, 31324301 + ... + 31324310.

It is an arithmetic number, because the mean of its divisors is an integer number (93972918).

Almost surely, 2^313243055 is an apocalyptic number.

313243055 is a deficient number, since it is larger than the sum of its proper divisors (62648617).

313243055 is an equidigital number, since it uses as much as digits as its factorization.

313243055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62648616.

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 313243055 is about 17698.6738203742. The cubic root of 313243055 is about 679.1418348322.

Adding to 313243055 its reverse (550342313), we get a palindrome (863585368).

The spelling of 313243055 in words is "three hundred thirteen million, two hundred forty-three thousand, fifty-five".