111023021011111 has 12 divisors (see below), whose sum is σ = 122050706635872. Its totient is φ = 100915844744000.

The previous prime is 111023021011103. The next prime is 111023021011139. The reversal of 111023021011111 is 111110120320111.

It is not a de Polignac number, because 111023021011111 - 2³ = 111023021011103 is a prime.

It is a super-2 number, since 2×111023021011111² (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 (111023021011811) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63563695 + ... + 65286976.

It is an arithmetic number, because the mean of its divisors is an integer number (10170892219656).

Almost surely, 2^{111023021011111} is an apocalyptic number.

111023021011111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

111023021011111 is a deficient number, since it is larger than the sum of its proper divisors (11027685624761).

111023021011111 is a wasteful number, since it uses less digits than its factorization.

111023021011111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128857814 (or 128857803 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 111023021011111 its reverse (111110120320111), we get a palindrome (222133141331222).

The spelling of 111023021011111 in words is "one hundred eleven trillion, twenty-three billion, twenty-one million, eleven thousand, one hundred eleven".