31313444213341 has 4 divisors (see below), whose sum is σ = 31844180556000. Its totient is φ = 30782707870684.

The previous prime is 31313444213279. The next prime is 31313444213357. The reversal of 31313444213341 is 14331244431313.

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 cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31313444213341 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31313444213341.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313444213141) 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, 265368171241 + ... + 265368171358.

It is an arithmetic number, because the mean of its divisors is an integer number (7961045139000).

Almost surely, 2^{31313444213341} is an apocalyptic number.

It is an amenable number.

31313444213341 is a deficient number, since it is larger than the sum of its proper divisors (530736342659).

31313444213341 is an equidigital number, since it uses as much as digits as its factorization.

31313444213341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530736342658.

The product of its digits is 124416, while the sum is 37.

Adding to 31313444213341 its reverse (14331244431313), we get a palindrome (45644688644654).

The spelling of 31313444213341 in words is "thirty-one trillion, three hundred thirteen billion, four hundred forty-four million, two hundred thirteen thousand, three hundred forty-one".