133013323013 has 4 divisors (see below), whose sum is σ = 133019956428. Its totient is φ = 133006689600.

The previous prime is 133013322997. The next prime is 133013323021. The reversal of 133013323013 is 310323310331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310323310331 = 398467 ⋅778793.

It can be written as a sum of positive squares in 2 ways, for example, as 17109163204 + 115904159809 = 130802^2 + 340447^2 .

It is a cyclic number.

It is not a de Polignac number, because 133013323013 - 2⁴ = 133013322997 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 133013323013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133013323033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3286538 + ... + 3326763.

It is an arithmetic number, because the mean of its divisors is an integer number (33254989107).

Almost surely, 2^133013323013 is an apocalyptic number.

It is an amenable number.

133013323013 is a deficient number, since it is larger than the sum of its proper divisors (6633415).

133013323013 is an equidigital number, since it uses as much as digits as its factorization.

133013323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6633414.

The product of its (nonzero) digits is 1458, while the sum is 23.

Adding to 133013323013 its reverse (310323310331), we get a palindrome (443336633344).

The spelling of 133013323013 in words is "one hundred thirty-three billion, thirteen million, three hundred twenty-three thousand, thirteen".