111433434123 has 16 divisors (see below), whose sum is σ = 162090573696. Its totient is φ = 67533090240.

The previous prime is 111433434109. The next prime is 111433434139. The reversal of 111433434123 is 321434334111.

It is not a de Polignac number, because 111433434123 - 2⁶ = 111433434059 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111433434163) 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, 1887336 + ... + 1945482.

It is an arithmetic number, because the mean of its divisors is an integer number (10130660856).

Almost surely, 2^111433434123 is an apocalyptic number.

111433434123 is a deficient number, since it is larger than the sum of its proper divisors (50657139573).

111433434123 is a wasteful number, since it uses less digits than its factorization.

111433434123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116234.

The product of its digits is 10368, while the sum is 30.

Adding to 111433434123 its reverse (321434334111), we get a palindrome (432867768234).

The spelling of 111433434123 in words is "one hundred eleven billion, four hundred thirty-three million, four hundred thirty-four thousand, one hundred twenty-three".