20011110303213 has 12 divisors (see below), whose sum is σ = 28908634908348. Its totient is φ = 13339033523520.

The previous prime is 20011110303187. The next prime is 20011110303221. The reversal of 20011110303213 is 31230301111002.

20011110303213 is a `hidden beast` number, since 200 + 1 + 1 + 110 + 30 + 321 + 3 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 308138230404 + 19702972072809 = 555102^2 + 4438803^2 .

It is not a de Polignac number, because 20011110303213 - 2⁸ = 20011110302957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011110305213) 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 11 ways as a sum of consecutive naturals, for example, 142148958 + ... + 142289663.

It is an arithmetic number, because the mean of its divisors is an integer number (2409052909029).

Almost surely, 2^{20011110303213} is an apocalyptic number.

It is an amenable number.

20011110303213 is a deficient number, since it is larger than the sum of its proper divisors (8897524605135).

20011110303213 is a wasteful number, since it uses less digits than its factorization.

20011110303213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284446444 (or 284446441 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20011110303213 its reverse (31230301111002), we get a palindrome (51241411414215).

The spelling of 20011110303213 in words is "twenty trillion, eleven billion, one hundred ten million, three hundred three thousand, two hundred thirteen".