133131303323 has 4 divisors (see below), whose sum is σ = 133133195520. Its totient is φ = 133129411128.

The previous prime is 133131303293. The next prime is 133131303341. The reversal of 133131303323 is 323303131331.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323303131331 = 29 ⋅11148383839.

It is a cyclic number.

It is not a de Polignac number, because 133131303323 - 2¹⁸ = 133131041179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133131303292 and 133131303301.

It is not an unprimeable number, because it can be changed into a prime (133131303353) 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, 836315 + ... + 982692.

It is an arithmetic number, because the mean of its divisors is an integer number (33283298880).

Almost surely, 2^133131303323 is an apocalyptic number.

133131303323 is a deficient number, since it is larger than the sum of its proper divisors (1892197).

133131303323 is an equidigital number, since it uses as much as digits as its factorization.

133131303323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892196.

The product of its (nonzero) digits is 4374, while the sum is 26.

Adding to 133131303323 its reverse (323303131331), we get a palindrome (456434434654).

The spelling of 133131303323 in words is "one hundred thirty-three billion, one hundred thirty-one million, three hundred three thousand, three hundred twenty-three".