31334234213 has 2 divisors, whose sum is σ = 31334234214. Its totient is φ = 31334234212.

The previous prime is 31334234201. The next prime is 31334234263. The reversal of 31334234213 is 31243243313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16210891684 + 15123342529 = 127322^2 + 122977^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31334234213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31334234263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15667117106 + 15667117107.

It is an arithmetic number, because the mean of its divisors is an integer number (15667117107).

Almost surely, 2^31334234213 is an apocalyptic number.

It is an amenable number.

31334234213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31334234213 is an equidigital number, since it uses as much as digits as its factorization.

31334234213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 29.

Adding to 31334234213 its reverse (31243243313), we get a palindrome (62577477526).

The spelling of 31334234213 in words is "thirty-one billion, three hundred thirty-four million, two hundred thirty-four thousand, two hundred thirteen".