111005161311 has 8 divisors (see below), whose sum is σ = 161462052864. Its totient is φ = 67275855320.

The previous prime is 111005161301. The next prime is 111005161313. The reversal of 111005161311 is 113161500111.

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 111005161311 - 2¹¹ = 111005159263 is a prime.

It is a super-2 number, since 2×111005161311² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111005161313) 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, 1681896351 + ... + 1681896416.

It is an arithmetic number, because the mean of its divisors is an integer number (20182756608).

Almost surely, 2^111005161311 is an apocalyptic number.

111005161311 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111005161311 is a deficient number, since it is larger than the sum of its proper divisors (50456891553).

111005161311 is a wasteful number, since it uses less digits than its factorization.

111005161311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3363792781.

The product of its (nonzero) digits is 90, while the sum is 21.

Adding to 111005161311 its reverse (113161500111), we get a palindrome (224166661422).

The spelling of 111005161311 in words is "one hundred eleven billion, five million, one hundred sixty-one thousand, three hundred eleven".