133511120240205 has 16 divisors (see below), whose sum is σ = 213618000749184. Its totient is φ = 71205861339840.

The previous prime is 133511120240177. The next prime is 133511120240219. The reversal of 133511120240205 is 502042021115331.

It is a happy number.

It is not a de Polignac number, because 133511120240205 - 2²⁰ = 133511119191629 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14068215 + ... + 21562395.

It is an arithmetic number, because the mean of its divisors is an integer number (13351125046824).

Almost surely, 2^{133511120240205} is an apocalyptic number.

133511120240205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133511120240205 is a deficient number, since it is larger than the sum of its proper divisors (80106880508979).

133511120240205 is a wasteful number, since it uses less digits than its factorization.

133511120240205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8681876.

The product of its (nonzero) digits is 7200, while the sum is 30.

Adding to 133511120240205 its reverse (502042021115331), we get a palindrome (635553141355536).

The spelling of 133511120240205 in words is "one hundred thirty-three trillion, five hundred eleven billion, one hundred twenty million, two hundred forty thousand, two hundred five".