11012120010011 has 4 divisors (see below), whose sum is σ = 11018423457672. Its totient is φ = 11005816562352.

The previous prime is 11012120009999. The next prime is 11012120010097. The reversal of 11012120010011 is 11001002121011.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012120010011 is a prime.

It is a super-2 number, since 2×11012120010011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11012120009974 and 11012120010001.

It is not an unprimeable number, because it can be changed into a prime (11012120010511) 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, 3151721210 + ... + 3151724703.

It is an arithmetic number, because the mean of its divisors is an integer number (2754605864418).

Almost surely, 2^{11012120010011} is an apocalyptic number.

11012120010011 is a deficient number, since it is larger than the sum of its proper divisors (6303447661).

11012120010011 is an equidigital number, since it uses as much as digits as its factorization.

11012120010011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6303447660.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11012120010011 its reverse (11001002121011), we get a palindrome (22013122131022).

The spelling of 11012120010011 in words is "eleven trillion, twelve billion, one hundred twenty million, ten thousand, eleven".