31443160193 has 2 divisors, whose sum is σ = 31443160194. Its totient is φ = 31443160192.

The previous prime is 31443160171. The next prime is 31443160207. The reversal of 31443160193 is 39106134413.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17780355649 + 13662804544 = 133343^2 + 116888^2 .

It is an emirp because it is prime and its reverse (39106134413) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31443160193 is a prime.

It is not a weakly prime, because it can be changed into another prime (31443160153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15721580096 + 15721580097.

It is an arithmetic number, because the mean of its divisors is an integer number (15721580097).

Almost surely, 2^31443160193 is an apocalyptic number.

It is an amenable number.

31443160193 is a deficient number, since it is larger than the sum of its proper divisors (1).

31443160193 is an equidigital number, since it uses as much as digits as its factorization.

31443160193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 31443160193 in words is "thirty-one billion, four hundred forty-three million, one hundred sixty thousand, one hundred ninety-three".