133333211101001 has 4 divisors (see below), whose sum is σ = 133404857105604. Its totient is φ = 133261565096400.

The previous prime is 133333211100997. The next prime is 133333211101093. The reversal of 133333211101001 is 100101112333331.

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 67318414848400 + 66014796252601 = 8204780^2 + 8124949^2 .

It is a cyclic number.

It is not a de Polignac number, because 133333211101001 - 2² = 133333211100997 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133333211106001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35822999510 + ... + 35823003231.

It is an arithmetic number, because the mean of its divisors is an integer number (33351214276401).

Almost surely, 2^{133333211101001} is an apocalyptic number.

It is an amenable number.

133333211101001 is a deficient number, since it is larger than the sum of its proper divisors (71646004603).

133333211101001 is an equidigital number, since it uses as much as digits as its factorization.

133333211101001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71646004602.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 133333211101001 its reverse (100101112333331), we get a palindrome (233434323434332).

The spelling of 133333211101001 in words is "one hundred thirty-three trillion, three hundred thirty-three billion, two hundred eleven million, one hundred one thousand, one".