133020030181 has 2 divisors, whose sum is σ = 133020030182. Its totient is φ = 133020030180.

The previous prime is 133020030173. The next prime is 133020030211. The reversal of 133020030181 is 181030020331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76656996900 + 56363033281 = 276870^2 + 237409^2 .

It is a cyclic number.

It is not a de Polignac number, because 133020030181 - 2³ = 133020030173 is a prime.

It is a super-2 number, since 2×133020030181² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133020030151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66510015090 + 66510015091.

It is an arithmetic number, because the mean of its divisors is an integer number (66510015091).

Almost surely, 2^133020030181 is an apocalyptic number.

It is an amenable number.

133020030181 is a deficient number, since it is larger than the sum of its proper divisors (1).

133020030181 is an equidigital number, since it uses as much as digits as its factorization.

133020030181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 133020030181 in words is "one hundred thirty-three billion, twenty million, thirty thousand, one hundred eighty-one".