133230420133 has 4 divisors (see below), whose sum is σ = 133257411180. Its totient is φ = 133203429088.

The previous prime is 133230420121. The next prime is 133230420139. The reversal of 133230420133 is 331024032331.

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 58863493924 + 74366926209 = 242618^2 + 272703^2 .

It is a cyclic number.

It is not a de Polignac number, because 133230420133 - 2⁵ = 133230420101 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133230420098 and 133230420107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133230420139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13488118 + ... + 13497991.

It is an arithmetic number, because the mean of its divisors is an integer number (33314352795).

Almost surely, 2^133230420133 is an apocalyptic number.

It is an amenable number.

133230420133 is a deficient number, since it is larger than the sum of its proper divisors (26991047).

133230420133 is an equidigital number, since it uses as much as digits as its factorization.

133230420133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26991046.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 133230420133 its reverse (331024032331), we get a palindrome (464254452464).

The spelling of 133230420133 in words is "one hundred thirty-three billion, two hundred thirty million, four hundred twenty thousand, one hundred thirty-three".