133202303021 has 2 divisors, whose sum is σ = 133202303022. Its totient is φ = 133202303020.

The previous prime is 133202302997. The next prime is 133202303023. The reversal of 133202303021 is 120303202331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 124661955625 + 8540347396 = 353075^2 + 92414^2 .

It is a cyclic number.

It is not a de Polignac number, because 133202303021 - 2⁶ = 133202302957 is a prime.

Together with 133202303023, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 133202302984 and 133202303002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133202303023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66601151510 + 66601151511.

It is an arithmetic number, because the mean of its divisors is an integer number (66601151511).

Almost surely, 2^133202303021 is an apocalyptic number.

It is an amenable number.

133202303021 is a deficient number, since it is larger than the sum of its proper divisors (1).

133202303021 is an equidigital number, since it uses as much as digits as its factorization.

133202303021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 133202303021 its reverse (120303202331), we get a palindrome (253505505352).

The spelling of 133202303021 in words is "one hundred thirty-three billion, two hundred two million, three hundred three thousand, twenty-one".