11111301303211 has 4 divisors (see below), whose sum is σ = 11122313495800. Its totient is φ = 11100289110624.

The previous prime is 11111301303209. The next prime is 11111301303217. The reversal of 11111301303211 is 11230310311111.

11111301303211 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 a cyclic number.

It is not a de Polignac number, because 11111301303211 - 2¹ = 11111301303209 is a prime.

It is a super-2 number, since 2×11111301303211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11111301303217) 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, 5506094781 + ... + 5506096798.

It is an arithmetic number, because the mean of its divisors is an integer number (2780578373950).

Almost surely, 2^{11111301303211} is an apocalyptic number.

11111301303211 is a deficient number, since it is larger than the sum of its proper divisors (11012192589).

11111301303211 is a wasteful number, since it uses less digits than its factorization.

11111301303211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012192588.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11111301303211 its reverse (11230310311111), we get a palindrome (22341611614322).

The spelling of 11111301303211 in words is "eleven trillion, one hundred eleven billion, three hundred one million, three hundred three thousand, two hundred eleven".