20111012200113 has 16 divisors (see below), whose sum is σ = 26988788889216. Its totient is φ = 13320309450240.

The previous prime is 20111012200039. The next prime is 20111012200121. The reversal of 20111012200113 is 31100221011102.

It is a de Polignac number, because none of the positive numbers 2^k-20111012200113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20111012200092 and 20111012200101.

It is not an unprimeable number, because it can be changed into a prime (20111012200133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1227820 + ... + 6459842.

It is an arithmetic number, because the mean of its divisors is an integer number (1686799305576).

Almost surely, 2^{20111012200113} is an apocalyptic number.

It is an amenable number.

20111012200113 is a deficient number, since it is larger than the sum of its proper divisors (6877776689103).

20111012200113 is a wasteful number, since it uses less digits than its factorization.

20111012200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5240344.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 20111012200113 its reverse (31100221011102), we get a palindrome (51211233211215).

The spelling of 20111012200113 in words is "twenty trillion, one hundred eleven billion, twelve million, two hundred thousand, one hundred thirteen".