133243335505 has 32 divisors (see below), whose sum is σ = 197431430400. Its totient is φ = 85992318720.

The previous prime is 133243335499. The next prime is 133243335529. The reversal of 133243335505 is 505533342331.

It is not a de Polignac number, because 133243335505 - 2⁹ = 133243334993 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2255931 + ... + 2314240.

It is an arithmetic number, because the mean of its divisors is an integer number (6169732200).

Almost surely, 2^133243335505 is an apocalyptic number.

It is an amenable number.

133243335505 is a deficient number, since it is larger than the sum of its proper divisors (64188094895).

133243335505 is an equidigital number, since it uses as much as digits as its factorization.

133243335505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570214 (or 4570200 counting only the distinct ones).

The product of its (nonzero) digits is 243000, while the sum is 37.

Adding to 133243335505 its reverse (505533342331), we get a palindrome (638776677836).

The spelling of 133243335505 in words is "one hundred thirty-three billion, two hundred forty-three million, three hundred thirty-five thousand, five hundred five".