20130133313 has 4 divisors (see below), whose sum is σ = 21314258820. Its totient is φ = 18946007808.

The previous prime is 20130133307. The next prime is 20130133327. The reversal of 20130133313 is 31333103102.

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 7679367424 + 12450765889 = 87632^2 + 111583^2 .

It is a cyclic number.

It is not a de Polignac number, because 20130133313 - 2⁶ = 20130133249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20130133333) 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, 592062728 + ... + 592062761.

It is an arithmetic number, because the mean of its divisors is an integer number (5328564705).

Almost surely, 2^20130133313 is an apocalyptic number.

It is an amenable number.

20130133313 is a deficient number, since it is larger than the sum of its proper divisors (1184125507).

20130133313 is a wasteful number, since it uses less digits than its factorization.

20130133313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184125506.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 20130133313 its reverse (31333103102), we get a palindrome (51463236415).

The spelling of 20130133313 in words is "twenty billion, one hundred thirty million, one hundred thirty-three thousand, three hundred thirteen".