31132222102213 has 2 divisors, whose sum is σ = 31132222102214. Its totient is φ = 31132222102212.

The previous prime is 31132222102199. The next prime is 31132222102229. The reversal of 31132222102213 is 31220122223113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30731301390724 + 400920711489 = 5543582^2 + 633183^2 .

It is an emirp because it is prime and its reverse (31220122223113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31132222102213 - 2²⁹ = 31131685231301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132222102283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566111051106 + 15566111051107.

It is an arithmetic number, because the mean of its divisors is an integer number (15566111051107).

Almost surely, 2^{31132222102213} is an apocalyptic number.

It is an amenable number.

31132222102213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132222102213 is an equidigital number, since it uses as much as digits as its factorization.

31132222102213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31132222102213 its reverse (31220122223113), we get a palindrome (62352344325326).

The spelling of 31132222102213 in words is "thirty-one trillion, one hundred thirty-two billion, two hundred twenty-two million, one hundred two thousand, two hundred thirteen".