1111310123211 has 16 divisors (see below), whose sum is σ = 1646613152800. Its totient is φ = 740770912224.

The previous prime is 1111310123191. The next prime is 1111310123221. The reversal of 1111310123211 is 1123210131111.

1111310123211 is a `hidden beast` number, since 1 + 111 + 310 + 1 + 232 + 11 = 666.

It is not a de Polignac number, because 1111310123211 - 2²² = 1111305928907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111310123221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2648296 + ... + 3039093.

It is an arithmetic number, because the mean of its divisors is an integer number (102913322050).

Almost surely, 2^{1111310123211} is an apocalyptic number.

1111310123211 is a deficient number, since it is larger than the sum of its proper divisors (535303029589).

1111310123211 is an equidigital number, since it uses as much as digits as its factorization.

1111310123211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5694635 (or 5694629 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 18.

Adding to 1111310123211 its reverse (1123210131111), we get a palindrome (2234520254322).

The spelling of 1111310123211 in words is "one trillion, one hundred eleven billion, three hundred ten million, one hundred twenty-three thousand, two hundred eleven".