133220220313 has 4 divisors (see below), whose sum is σ = 133269039540. Its totient is φ = 133171401088.

The previous prime is 133220220311. The next prime is 133220220361. The reversal of 133220220313 is 313022022331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313022022331 = 29 ⋅10793862839.

It can be written as a sum of positive squares in 2 ways, for example, as 95182739289 + 38037481024 = 308517^2 + 195032^2 .

It is a cyclic number.

It is not a de Polignac number, because 133220220313 - 2¹ = 133220220311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133220220311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24405520 + ... + 24410977.

It is an arithmetic number, because the mean of its divisors is an integer number (33317259885).

Almost surely, 2^133220220313 is an apocalyptic number.

It is an amenable number.

133220220313 is a deficient number, since it is larger than the sum of its proper divisors (48819227).

133220220313 is an equidigital number, since it uses as much as digits as its factorization.

133220220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48819226.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 133220220313 its reverse (313022022331), we get a palindrome (446242242644).

The spelling of 133220220313 in words is "one hundred thirty-three billion, two hundred twenty million, two hundred twenty thousand, three hundred thirteen".