133013221213 has 4 divisors (see below), whose sum is σ = 138796404768. Its totient is φ = 127230037660.

The previous prime is 133013221199. The next prime is 133013221247. The reversal of 133013221213 is 312122310331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 312122310331 = 13 ⋅24009408487.

It is a cyclic number.

It is not a de Polignac number, because 133013221213 - 2⁹ = 133013220701 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 (133013221513) 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, 2891591743 + ... + 2891591788.

It is an arithmetic number, because the mean of its divisors is an integer number (34699101192).

Almost surely, 2^133013221213 is an apocalyptic number.

It is an amenable number.

133013221213 is a deficient number, since it is larger than the sum of its proper divisors (5783183555).

133013221213 is an equidigital number, since it uses as much as digits as its factorization.

133013221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5783183554.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133013221213 its reverse (312122310331), we get a palindrome (445135531544).

The spelling of 133013221213 in words is "one hundred thirty-three billion, thirteen million, two hundred twenty-one thousand, two hundred thirteen".