1311141111 has 16 divisors (see below), whose sum is σ = 1998737664. Its totient is φ = 748920384.

The previous prime is 1311141109. The next prime is 1311141119. The reversal of 1311141111 is 1111411131.

It is not a de Polignac number, because 1311141111 - 2¹ = 1311141109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311141119) 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, 47076 + ... + 69558.

It is an arithmetic number, because the mean of its divisors is an integer number (124921104).

Almost surely, 2^1311141111 is an apocalyptic number.

1311141111 is a deficient number, since it is larger than the sum of its proper divisors (687596553).

1311141111 is a wasteful number, since it uses less digits than its factorization.

1311141111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25270.

The product of its digits is 12, while the sum is 15.

The square root of 1311141111 is about 36209.6825586748. The cubic root of 1311141111 is about 1094.5017954202.

Adding to 1311141111 its reverse (1111411131), we get a palindrome (2422552242).

The spelling of 1311141111 in words is "one billion, three hundred eleven million, one hundred forty-one thousand, one hundred eleven".