313343211031 has 4 divisors (see below), whose sum is σ = 329834959000. Its totient is φ = 296851463064.

The previous prime is 313343210977. The next prime is 313343211037. The reversal of 313343211031 is 130112343313.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130112343313 = 2087 ⋅62344199.

It is a cyclic number.

It is not a de Polignac number, because 313343211031 - 2⁹ = 313343210519 is a prime.

It is a super-2 number, since 2×313343211031² (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 = 313343210987 and 313343211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313343211037) 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, 8245873956 + ... + 8245873993.

It is an arithmetic number, because the mean of its divisors is an integer number (82458739750).

Almost surely, 2^313343211031 is an apocalyptic number.

313343211031 is a deficient number, since it is larger than the sum of its proper divisors (16491747969).

313343211031 is a wasteful number, since it uses less digits than its factorization.

313343211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16491747968.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 313343211031 its reverse (130112343313), we get a palindrome (443455554344).

The spelling of 313343211031 in words is "three hundred thirteen billion, three hundred forty-three million, two hundred eleven thousand, thirty-one".