1311110323111 has 16 divisors (see below), whose sum is σ = 1386694471680. Its totient is φ = 1237120204320.

The previous prime is 1311110323091. The next prime is 1311110323163. The reversal of 1311110323111 is 1113230111131.

It is a cyclic number.

It is not a de Polignac number, because 1311110323111 - 2⁵ = 1311110323079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311110333111) 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, 742330 + ... + 1781368.

It is an arithmetic number, because the mean of its divisors is an integer number (86668404480).

Almost surely, 2^{1311110323111} is an apocalyptic number.

1311110323111 is a deficient number, since it is larger than the sum of its proper divisors (75584148569).

1311110323111 is a wasteful number, since it uses less digits than its factorization.

1311110323111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1039806.

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

Adding to 1311110323111 its reverse (1113230111131), we get a palindrome (2424340434242).

The spelling of 1311110323111 in words is "one trillion, three hundred eleven billion, one hundred ten million, three hundred twenty-three thousand, one hundred eleven".