133203013 has 2 divisors, whose sum is σ = 133203014. Its totient is φ = 133203012.

The previous prime is 133202981. The next prime is 133203023. The reversal of 133203013 is 310302331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127283524 + 5919489 = 11282^2 + 2433^2 .

It is a cyclic number.

It is not a de Polignac number, because 133203013 - 2⁵ = 133202981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133203023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66601506 + 66601507.

It is an arithmetic number, because the mean of its divisors is an integer number (66601507).

Almost surely, 2^133203013 is an apocalyptic number.

It is an amenable number.

133203013 is a deficient number, since it is larger than the sum of its proper divisors (1).

133203013 is an equidigital number, since it uses as much as digits as its factorization.

133203013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 133203013 is about 11541.3609682741. The cubic root of 133203013 is about 510.7064578379.

Adding to 133203013 its reverse (310302331), we get a palindrome (443505344).

The spelling of 133203013 in words is "one hundred thirty-three million, two hundred three thousand, thirteen".