31343434313 has 4 divisors (see below), whose sum is σ = 31543074180. Its totient is φ = 31143794448.

The previous prime is 31343434301. The next prime is 31343434319.

31343434313 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14502662329 + 16840771984 = 120427^2 + 129772^2 .

It is a cyclic number.

It is not a de Polignac number, because 31343434313 - 2¹⁴ = 31343417929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31343434313.

It is not an unprimeable number, because it can be changed into a prime (31343434319) 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, 99819698 + ... + 99820011.

It is an arithmetic number, because the mean of its divisors is an integer number (7885768545).

Almost surely, 2^31343434313 is an apocalyptic number.

It is an amenable number.

31343434313 is a deficient number, since it is larger than the sum of its proper divisors (199639867).

31343434313 is a wasteful number, since it uses less digits than its factorization.

31343434313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199639866.

The product of its digits is 46656, while the sum is 32.

The spelling of 31343434313 in words is "thirty-one billion, three hundred forty-three million, four hundred thirty-four thousand, three hundred thirteen".