133013221312313 has 4 divisors (see below), whose sum is σ = 133013766422388. Its totient is φ = 133012676202240.

The previous prime is 133013221312267. The next prime is 133013221312319. The reversal of 133013221312313 is 313213122310331.

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 64660061157904 + 68353160154409 = 8041148^2 + 8267597^2 .

It is a cyclic number.

It is not a de Polignac number, because 133013221312313 - 2²⁴ = 133013204535097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133013221312319) 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, 272188856 + ... + 272677097.

It is an arithmetic number, because the mean of its divisors is an integer number (33253441605597).

Almost surely, 2^{133013221312313} is an apocalyptic number.

It is an amenable number.

133013221312313 is a deficient number, since it is larger than the sum of its proper divisors (545110075).

133013221312313 is an equidigital number, since it uses as much as digits as its factorization.

133013221312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545110074.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 133013221312313 its reverse (313213122310331), we get a palindrome (446226343622644).

The spelling of 133013221312313 in words is "one hundred thirty-three trillion, thirteen billion, two hundred twenty-one million, three hundred twelve thousand, three hundred thirteen".