313322020331 has 4 divisors (see below), whose sum is σ = 329812653000. Its totient is φ = 296831387664.

The previous prime is 313322020327. The next prime is 313322020373. The reversal of 313322020331 is 133020223313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133020223313 = 72307 ⋅1839659.

It is a cyclic number.

It is not a de Polignac number, because 313322020331 - 2² = 313322020327 is a prime.

It is a super-2 number, since 2×313322020331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313322020297 and 313322020306.

It is not an unprimeable number, because it can be changed into a prime (313322020391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8245316306 + ... + 8245316343.

It is an arithmetic number, because the mean of its divisors is an integer number (82453163250).

Almost surely, 2^313322020331 is an apocalyptic number.

313322020331 is a deficient number, since it is larger than the sum of its proper divisors (16490632669).

313322020331 is a wasteful number, since it uses less digits than its factorization.

313322020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16490632668.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 313322020331 its reverse (133020223313), we get a palindrome (446342243644).

The spelling of 313322020331 in words is "three hundred thirteen billion, three hundred twenty-two million, twenty thousand, three hundred thirty-one".