201331433 has 2 divisors, whose sum is σ = 201331434. Its totient is φ = 201331432.

The previous prime is 201331399. The next prime is 201331441. The reversal of 201331433 is 334133102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120187369 + 81144064 = 10963^2 + 9008^2 .

It is a cyclic number.

It is not a de Polignac number, because 201331433 - 2⁸ = 201331177 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (201331463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100665716 + 100665717.

It is an arithmetic number, because the mean of its divisors is an integer number (100665717).

Almost surely, 2^201331433 is an apocalyptic number.

It is an amenable number.

201331433 is a deficient number, since it is larger than the sum of its proper divisors (1).

201331433 is an equidigital number, since it uses as much as digits as its factorization.

201331433 is an odious number, because the sum of its binary digits is odd.

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

The square root of 201331433 is about 14189.1308049507. The cubic root of 201331433 is about 586.0983897897.

Adding to 201331433 its reverse (334133102), we get a palindrome (535464535).

The spelling of 201331433 in words is "two hundred one million, three hundred thirty-one thousand, four hundred thirty-three".