11011210121011 has 4 divisors (see below), whose sum is σ = 11267284775032. Its totient is φ = 10755135466992.

The previous prime is 11011210120969. The next prime is 11011210121053. The reversal of 11011210121011 is 11012101211011.

11011210121011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (11011210120969) and next prime (11011210121053).

It is a cyclic number.

It is not a de Polignac number, because 11011210121011 - 2¹¹ = 11011210118963 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11011210120982 and 11011210121000.

It is not an unprimeable number, because it can be changed into a prime (11011210121111) 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, 128037326946 + ... + 128037327031.

It is an arithmetic number, because the mean of its divisors is an integer number (2816821193758).

Almost surely, 2^{11011210121011} is an apocalyptic number.

11011210121011 is a deficient number, since it is larger than the sum of its proper divisors (256074654021).

11011210121011 is an equidigital number, since it uses as much as digits as its factorization.

11011210121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256074654020.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11011210121011 its reverse (11012101211011), we get a palindrome (22023311332022).

The spelling of 11011210121011 in words is "eleven trillion, eleven billion, two hundred ten million, one hundred twenty-one thousand, eleven".