133121313343 has 4 divisors (see below), whose sum is σ = 135953681760. Its totient is φ = 130288944928.

The previous prime is 133121313307. The next prime is 133121313349. The reversal of 133121313343 is 343313121331.

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

It is a cyclic number.

It is not a de Polignac number, because 133121313343 - 2²⁵ = 133087758911 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133121313349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416184138 + ... + 1416184231.

It is an arithmetic number, because the mean of its divisors is an integer number (33988420440).

Almost surely, 2^133121313343 is an apocalyptic number.

133121313343 is a deficient number, since it is larger than the sum of its proper divisors (2832368417).

133121313343 is an equidigital number, since it uses as much as digits as its factorization.

133121313343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832368416.

The product of its digits is 5832, while the sum is 28.

Adding to 133121313343 its reverse (343313121331), we get a palindrome (476434434674).

The spelling of 133121313343 in words is "one hundred thirty-three billion, one hundred twenty-one million, three hundred thirteen thousand, three hundred forty-three".