133523402620313 has 4 divisors (see below), whose sum is σ = 136780070976948. Its totient is φ = 130266734263680.

The previous prime is 133523402620273. The next prime is 133523402620397. The reversal of 133523402620313 is 313026204325331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4036936879369 + 129486465740944 = 2009213^2 + 11379212^2 .

It is a cyclic number.

It is not a de Polignac number, because 133523402620313 - 2²⁴ = 133523385843097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (133523402620913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1628334178256 + ... + 1628334178337.

It is an arithmetic number, because the mean of its divisors is an integer number (34195017744237).

Almost surely, 2^{133523402620313} is an apocalyptic number.

It is an amenable number.

133523402620313 is a deficient number, since it is larger than the sum of its proper divisors (3256668356635).

133523402620313 is an equidigital number, since it uses as much as digits as its factorization.

133523402620313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3256668356634.

The product of its (nonzero) digits is 233280, while the sum is 38.

Adding to 133523402620313 its reverse (313026204325331), we get a palindrome (446549606945644).

The spelling of 133523402620313 in words is "one hundred thirty-three trillion, five hundred twenty-three billion, four hundred two million, six hundred twenty thousand, three hundred thirteen".