31435450133 has 2 divisors, whose sum is σ = 31435450134. Its totient is φ = 31435450132.

The previous prime is 31435450117. The next prime is 31435450303. The reversal of 31435450133 is 33105453413.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17135595409 + 14299854724 = 130903^2 + 119582^2 .

It is an emirp because it is prime and its reverse (33105453413) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31435450133 - 2⁴ = 31435450117 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31435450133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31435450103) 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, 15717725066 + 15717725067.

It is an arithmetic number, because the mean of its divisors is an integer number (15717725067).

Almost surely, 2^31435450133 is an apocalyptic number.

It is an amenable number.

31435450133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31435450133 is an equidigital number, since it uses as much as digits as its factorization.

31435450133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 32.

The spelling of 31435450133 in words is "thirty-one billion, four hundred thirty-five million, four hundred fifty thousand, one hundred thirty-three".