133333210013321 has 4 divisors (see below), whose sum is σ = 133333658608644. Its totient is φ = 133332761418000.

The previous prime is 133333210013317. The next prime is 133333210013359. The reversal of 133333210013321 is 123310012333331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 71367014410000 + 61966195603321 = 8447900^2 + 7871861^2 .

It is a cyclic number.

It is not a de Polignac number, because 133333210013321 - 2² = 133333210013317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133333210013021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 223851530 + ... + 224446371.

It is an arithmetic number, because the mean of its divisors is an integer number (33333414652161).

Almost surely, 2^{133333210013321} is an apocalyptic number.

It is an amenable number.

133333210013321 is a deficient number, since it is larger than the sum of its proper divisors (448595323).

133333210013321 is an equidigital number, since it uses as much as digits as its factorization.

133333210013321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 448595322.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 133333210013321 its reverse (123310012333331), we get a palindrome (256643222346652).

The spelling of 133333210013321 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, two hundred ten million, thirteen thousand, three hundred twenty-one".