111113121311111 has 8 divisors (see below), whose sum is σ = 113457373755744. Its totient is φ = 108791089269120.

The previous prime is 111113121311057. The next prime is 111113121311117.

111113121311111 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111113121311111 is a prime.

It is a super-2 number, since 2×111113121311111² (a number of 29 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 (111113121311117) 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, 5555090555 + ... + 5555110556.

It is an arithmetic number, because the mean of its divisors is an integer number (14182171719468).

Almost surely, 2^{111113121311111} is an apocalyptic number.

111113121311111 is a deficient number, since it is larger than the sum of its proper divisors (2344252444633).

111113121311111 is a wasteful number, since it uses less digits than its factorization.

111113121311111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110201321.

The product of its digits is 18, while the sum is 20.

The spelling of 111113121311111 in words is "one hundred eleven trillion, one hundred thirteen billion, one hundred twenty-one million, three hundred eleven thousand, one hundred eleven".