133213111313 has 4 divisors (see below), whose sum is σ = 133298890788. Its totient is φ = 133127331840.

The previous prime is 133213111279. The next prime is 133213111373. The reversal of 133213111313 is 313111312331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313111312331 = 15137 ⋅20685163.

It can be written as a sum of positive squares in 2 ways, for example, as 12159913984 + 121053197329 = 110272^2 + 347927^2 .

It is a cyclic number.

It is not a de Polignac number, because 133213111313 - 2²⁴ = 133196334097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133213111373) 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, 42887408 + ... + 42890513.

It is an arithmetic number, because the mean of its divisors is an integer number (33324722697).

Almost surely, 2^133213111313 is an apocalyptic number.

It is an amenable number.

133213111313 is a deficient number, since it is larger than the sum of its proper divisors (85779475).

133213111313 is an equidigital number, since it uses as much as digits as its factorization.

133213111313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85779474.

The product of its digits is 486, while the sum is 23.

Adding to 133213111313 its reverse (313111312331), we get a palindrome (446324423644).

The spelling of 133213111313 in words is "one hundred thirty-three billion, two hundred thirteen million, one hundred eleven thousand, three hundred thirteen".