11200120013 has 4 divisors (see below), whose sum is σ = 11858950620. Its totient is φ = 10541289408.

The previous prime is 11200119961. The next prime is 11200120051. The reversal of 11200120013 is 31002100211.

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 3627291529 + 7572828484 = 60227^2 + 87022^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200120013 - 2⁸ = 11200119757 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200119976 and 11200120003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200120093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329415278 + ... + 329415311.

It is an arithmetic number, because the mean of its divisors is an integer number (2964737655).

Almost surely, 2^11200120013 is an apocalyptic number.

It is an amenable number.

11200120013 is a deficient number, since it is larger than the sum of its proper divisors (658830607).

11200120013 is an equidigital number, since it uses as much as digits as its factorization.

11200120013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658830606.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11200120013 its reverse (31002100211), we get a palindrome (42202220224).

The spelling of 11200120013 in words is "eleven billion, two hundred million, one hundred twenty thousand, thirteen".