31434433193 has 2 divisors, whose sum is σ = 31434433194. Its totient is φ = 31434433192.

The previous prime is 31434433183. The next prime is 31434433229. The reversal of 31434433193 is 39133443413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28768569769 + 2665863424 = 169613^2 + 51632^2 .

It is a cyclic number.

It is not a de Polignac number, because 31434433193 - 2¹² = 31434429097 is a prime.

It is not a weakly prime, because it can be changed into another prime (31434433183) 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, 15717216596 + 15717216597.

It is an arithmetic number, because the mean of its divisors is an integer number (15717216597).

Almost surely, 2^31434433193 is an apocalyptic number.

It is an amenable number.

31434433193 is a deficient number, since it is larger than the sum of its proper divisors (1).

31434433193 is an equidigital number, since it uses as much as digits as its factorization.

31434433193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 38.

The spelling of 31434433193 in words is "thirty-one billion, four hundred thirty-four million, four hundred thirty-three thousand, one hundred ninety-three".