11001311113021 has 4 divisors (see below), whose sum is σ = 11001329539200. Its totient is φ = 11001292686844.

The previous prime is 11001311112947. The next prime is 11001311113061. The reversal of 11001311113021 is 12031111310011.

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 a de Polignac number, because none of the positive numbers 2^k-11001311113021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11001311112986 and 11001311113004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001311113061) 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, 8286451 + ... + 9521968.

It is an arithmetic number, because the mean of its divisors is an integer number (2750332384800).

Almost surely, 2^{11001311113021} is an apocalyptic number.

It is an amenable number.

11001311113021 is a deficient number, since it is larger than the sum of its proper divisors (18426179).

11001311113021 is an equidigital number, since it uses as much as digits as its factorization.

11001311113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18426178.

The product of its (nonzero) digits is 18, while the sum is 16.

Adding to 11001311113021 its reverse (12031111310011), we get a palindrome (23032422423032).

The spelling of 11001311113021 in words is "eleven trillion, one billion, three hundred eleven million, one hundred thirteen thousand, twenty-one".