111142141123 has 16 divisors (see below), whose sum is σ = 121012295040. Its totient is φ = 101464602624.

The previous prime is 111142141073. The next prime is 111142141133. The reversal of 111142141123 is 321141241111.

It is a cyclic number.

It is not a de Polignac number, because 111142141123 - 2¹⁷ = 111142010051 is a prime.

It is a super-3 number, since 3×111142141123³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 111142141094 and 111142141103.

It is not an unprimeable number, because it can be changed into a prime (111142141133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 598443 + ... + 761851.

It is an arithmetic number, because the mean of its divisors is an integer number (7563268440).

Almost surely, 2^111142141123 is an apocalyptic number.

111142141123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111142141123 is a deficient number, since it is larger than the sum of its proper divisors (9870153917).

111142141123 is a wasteful number, since it uses less digits than its factorization.

111142141123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163998.

The product of its digits is 192, while the sum is 22.

Adding to 111142141123 its reverse (321141241111), we get a palindrome (432283382234).

The spelling of 111142141123 in words is "one hundred eleven billion, one hundred forty-two million, one hundred forty-one thousand, one hundred twenty-three".