11130031111211 has 4 divisors (see below), whose sum is σ = 11135239363752. Its totient is φ = 11124822858672.

The previous prime is 11130031111207. The next prime is 11130031111231. The reversal of 11130031111211 is 11211113003111.

It is a happy number.

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 11130031111211 - 2² = 11130031111207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11130031111211.

It is not an unprimeable number, because it can be changed into a prime (11130031111201) 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, 2604123065 + ... + 2604127338.

It is an arithmetic number, because the mean of its divisors is an integer number (2783809840938).

Almost surely, 2^{11130031111211} is an apocalyptic number.

11130031111211 is a deficient number, since it is larger than the sum of its proper divisors (5208252541).

11130031111211 is an equidigital number, since it uses as much as digits as its factorization.

11130031111211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208252540.

The product of its (nonzero) digits is 18, while the sum is 17.

Adding to 11130031111211 its reverse (11211113003111), we get a palindrome (22341144114322).

The spelling of 11130031111211 in words is "eleven trillion, one hundred thirty billion, thirty-one million, one hundred eleven thousand, two hundred eleven".