111113131111 has 8 divisors (see below), whose sum is σ = 112525869600. Its totient is φ = 109706522400.

The previous prime is 111113131099. The next prime is 111113131121. The reversal of 111113131111 is 111131311111.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111113131111 - 2¹⁹ = 111112606823 is a prime.

It is a super-2 number, since 2×111113131111² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111113131121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1495956 + ... + 1568473.

It is an arithmetic number, because the mean of its divisors is an integer number (14065733700).

Almost surely, 2^111113131111 is an apocalyptic number.

111113131111 is a deficient number, since it is larger than the sum of its proper divisors (1412738489).

111113131111 is a wasteful number, since it uses less digits than its factorization.

111113131111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3064889.

The product of its digits is 9, while the sum is 16.

Adding to 111113131111 its reverse (111131311111), we get a palindrome (222244442222).

The spelling of 111113131111 in words is "one hundred eleven billion, one hundred thirteen million, one hundred thirty-one thousand, one hundred eleven".