31132332193 has 2 divisors, whose sum is σ = 31132332194. Its totient is φ = 31132332192.

The previous prime is 31132332191. The next prime is 31132332229. The reversal of 31132332193 is 39123323113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24052287744 + 7080044449 = 155088^2 + 84143^2 .

It is a cyclic number.

It is not a de Polignac number, because 31132332193 - 2¹ = 31132332191 is a prime.

Together with 31132332191, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31132332191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566166096 + 15566166097.

It is an arithmetic number, because the mean of its divisors is an integer number (15566166097).

Almost surely, 2^31132332193 is an apocalyptic number.

It is an amenable number.

31132332193 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132332193 is an equidigital number, since it uses as much as digits as its factorization.

31132332193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8748, while the sum is 31.

The spelling of 31132332193 in words is "thirty-one billion, one hundred thirty-two million, three hundred thirty-two thousand, one hundred ninety-three".