11111020000013 has 4 divisors (see below), whose sum is σ = 11111064189600. Its totient is φ = 11110975810428.

The previous prime is 11111020000007. The next prime is 11111020000103. The reversal of 11111020000013 is 31000002011111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11111020000013 - 2¹² = 11111019995917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11111019999949 and 11111020000003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111020000513) 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 3 ways as a sum of consecutive naturals, for example, 21715463 + ... + 22221236.

It is an arithmetic number, because the mean of its divisors is an integer number (2777766047400).

Almost surely, 2^{11111020000013} is an apocalyptic number.

It is an amenable number.

11111020000013 is a deficient number, since it is larger than the sum of its proper divisors (44189587).

11111020000013 is an equidigital number, since it uses as much as digits as its factorization.

11111020000013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44189586.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11111020000013 its reverse (31000002011111), we get a palindrome (42111022011124).

The spelling of 11111020000013 in words is "eleven trillion, one hundred eleven billion, twenty million, thirteen", and thus it is an aban number.