201231333133 has 2 divisors, whose sum is σ = 201231333134. Its totient is φ = 201231333132.

The previous prime is 201231333109. The next prime is 201231333161. The reversal of 201231333133 is 331333132102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 184056444324 + 17174888809 = 429018^2 + 131053^2 .

It is a cyclic number.

It is not a de Polignac number, because 201231333133 - 2²¹ = 201229235981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201231333098 and 201231333107.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201231333103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100615666566 + 100615666567.

It is an arithmetic number, because the mean of its divisors is an integer number (100615666567).

Almost surely, 2^201231333133 is an apocalyptic number.

It is an amenable number.

201231333133 is a deficient number, since it is larger than the sum of its proper divisors (1).

201231333133 is an equidigital number, since it uses as much as digits as its factorization.

201231333133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 201231333133 its reverse (331333132102), we get a palindrome (532564465235).

The spelling of 201231333133 in words is "two hundred one billion, two hundred thirty-one million, three hundred thirty-three thousand, one hundred thirty-three".