313133133 has 4 divisors (see below), whose sum is σ = 417510848. Its totient is φ = 208755420.

The previous prime is 313133123. The next prime is 313133159. The reversal of 313133133 is 331331313.

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, and also an emirpimes, since its reverse is a distinct semiprime: 331331313 = 3 ⋅110443771.

It is not a de Polignac number, because 313133133 - 2¹⁷ = 313002061 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313133123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52188853 + ... + 52188858.

It is an arithmetic number, because the mean of its divisors is an integer number (104377712).

Almost surely, 2^313133133 is an apocalyptic number.

It is an amenable number.

313133133 is a deficient number, since it is larger than the sum of its proper divisors (104377715).

313133133 is a wasteful number, since it uses less digits than its factorization.

313133133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104377714.

The product of its digits is 729, while the sum is 21.

The square root of 313133133 is about 17695.5681739807. The cubic root of 313133133 is about 679.0623849592.

Adding to 313133133 its reverse (331331313), we get a palindrome (644464446).

The spelling of 313133133 in words is "three hundred thirteen million, one hundred thirty-three thousand, one hundred thirty-three".