31433043193 has 2 divisors, whose sum is σ = 31433043194. Its totient is φ = 31433043192.

The previous prime is 31433043133. The next prime is 31433043227. The reversal of 31433043193 is 39134033413.

It is an a-pointer prime, because the next prime (31433043227) can be obtained adding 31433043193 to its sum of digits (34).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25573446889 + 5859596304 = 159917^2 + 76548^2 .

It is a cyclic number.

It is not a de Polignac number, because 31433043193 - 2²⁵ = 31399488761 is a prime.

It is not a weakly prime, because it can be changed into another prime (31433043133) 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, 15716521596 + 15716521597.

It is an arithmetic number, because the mean of its divisors is an integer number (15716521597).

Almost surely, 2^31433043193 is an apocalyptic number.

It is an amenable number.

31433043193 is a deficient number, since it is larger than the sum of its proper divisors (1).

31433043193 is an equidigital number, since it uses as much as digits as its factorization.

31433043193 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 34992, while the sum is 34.

The spelling of 31433043193 in words is "thirty-one billion, four hundred thirty-three million, forty-three thousand, one hundred ninety-three".