133120230016021 has 2 divisors, whose sum is σ = 133120230016022. Its totient is φ = 133120230016020.

The previous prime is 133120230015979. The next prime is 133120230016061. The reversal of 133120230016021 is 120610032021331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68898117639121 + 64222112376900 = 8300489^2 + 8013870^2 .

It is a cyclic number.

It is not a de Polignac number, because 133120230016021 - 2⁷ = 133120230015893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133120230016061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66560115008010 + 66560115008011.

It is an arithmetic number, because the mean of its divisors is an integer number (66560115008011).

Almost surely, 2^{133120230016021} is an apocalyptic number.

It is an amenable number.

133120230016021 is a deficient number, since it is larger than the sum of its proper divisors (1).

133120230016021 is an equidigital number, since it uses as much as digits as its factorization.

133120230016021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 133120230016021 its reverse (120610032021331), we get a palindrome (253730262037352).

The spelling of 133120230016021 in words is "one hundred thirty-three trillion, one hundred twenty billion, two hundred thirty million, sixteen thousand, twenty-one".