133201331001 has 12 divisors (see below), whose sum is σ = 197601975012. Its totient is φ = 86400863136.

The previous prime is 133201330981. The next prime is 133201331047. The reversal of 133201331001 is 100133102331.

It is a happy number.

133201331001 is a `hidden beast` number, since 1 + 332 + 0 + 1 + 331 + 0 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92930474025 + 40270856976 = 304845^2 + 200676^2 .

It is not a de Polignac number, because 133201331001 - 2¹⁰ = 133201329977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133201331051) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 200001666 + ... + 200002331.

It is an arithmetic number, because the mean of its divisors is an integer number (16466831251).

Almost surely, 2^133201331001 is an apocalyptic number.

It is an amenable number.

133201331001 is a deficient number, since it is larger than the sum of its proper divisors (64400644011).

133201331001 is a wasteful number, since it uses less digits than its factorization.

133201331001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 400004040 (or 400004037 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 133201331001 its reverse (100133102331), we get a palindrome (233334433332).

The spelling of 133201331001 in words is "one hundred thirty-three billion, two hundred one million, three hundred thirty-one thousand, one".