20213133321313 has 8 divisors (see below), whose sum is σ = 20597309801640. Its totient is φ = 19830660506880.

The previous prime is 20213133321257. The next prime is 20213133321319. The reversal of 20213133321313 is 31312333131202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1458933026769 + 18754200294544 = 1207863^2 + 4330612^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20213133321313 - 2¹⁷ = 20213133190241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20213133321319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425892520 + ... + 425939977.

It is an arithmetic number, because the mean of its divisors is an integer number (2574663725205).

Almost surely, 2^{20213133321313} is an apocalyptic number.

It is an amenable number.

20213133321313 is a deficient number, since it is larger than the sum of its proper divisors (384176480327).

20213133321313 is an equidigital number, since it uses as much as digits as its factorization.

20213133321313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 851832947.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 20213133321313 its reverse (31312333131202), we get a palindrome (51525466452515).

The spelling of 20213133321313 in words is "twenty trillion, two hundred thirteen billion, one hundred thirty-three million, three hundred twenty-one thousand, three hundred thirteen".