133135203203321 has 16 divisors (see below), whose sum is σ = 148365601966080. Its totient is φ = 118427289592080.

The previous prime is 133135203203281. The next prime is 133135203203347. The reversal of 133135203203321 is 123302302531331.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133135203203321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133135203203921) by changing a digit.

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, 30061511 + ... + 34204748.

It is an arithmetic number, because the mean of its divisors is an integer number (9272850122880).

Almost surely, 2^{133135203203321} is an apocalyptic number.

133135203203321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

133135203203321 is a deficient number, since it is larger than the sum of its proper divisors (15230398762759).

133135203203321 is a wasteful number, since it uses less digits than its factorization.

133135203203321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64270324.

The product of its (nonzero) digits is 29160, while the sum is 32.

Adding to 133135203203321 its reverse (123302302531331), we get a palindrome (256437505734652).

The spelling of 133135203203321 in words is "one hundred thirty-three trillion, one hundred thirty-five billion, two hundred three million, two hundred three thousand, three hundred twenty-one".