313301220133 has 4 divisors (see below), whose sum is σ = 341783149248. Its totient is φ = 284819291020.

The previous prime is 313301220059. The next prime is 313301220137. The reversal of 313301220133 is 331022103313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a de Polignac number, because none of the positive numbers 2^k-313301220133 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 (313301220137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14240964541 + ... + 14240964562.

It is an arithmetic number, because the mean of its divisors is an integer number (85445787312).

Almost surely, 2^313301220133 is an apocalyptic number.

It is an amenable number.

313301220133 is a deficient number, since it is larger than the sum of its proper divisors (28481929115).

313301220133 is a wasteful number, since it uses less digits than its factorization.

313301220133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28481929114.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 313301220133 its reverse (331022103313), we get a palindrome (644323323446).

The spelling of 313301220133 in words is "three hundred thirteen billion, three hundred one million, two hundred twenty thousand, one hundred thirty-three".