20111201120113 has 8 divisors (see below), whose sum is σ = 20804752480680. Its totient is φ = 19417653870720.

The previous prime is 20111201120107. The next prime is 20111201120173. The reversal of 20111201120113 is 31102110211102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1195112476944 + 18916088643169 = 1093212^2 + 4349263^2 .

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 20111201120113 - 2¹⁷ = 20111200989041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111201120173) 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, 11522023 + ... + 13152163.

It is an arithmetic number, because the mean of its divisors is an integer number (2600594060085).

Almost surely, 2^{20111201120113} is an apocalyptic number.

It is an amenable number.

20111201120113 is a deficient number, since it is larger than the sum of its proper divisors (693551360567).

20111201120113 is a wasteful number, since it uses less digits than its factorization.

20111201120113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2055587.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20111201120113 its reverse (31102110211102), we get a palindrome (51213311331215).

The spelling of 20111201120113 in words is "twenty trillion, one hundred eleven billion, two hundred one million, one hundred twenty thousand, one hundred thirteen".