111434342 has 4 divisors (see below), whose sum is σ = 167151516. Its totient is φ = 55717170.

The previous prime is 111434341. The next prime is 111434359. The reversal of 111434342 is 243434111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 243434111 = 2531 ⋅96181.

It is a super-2 number, since 2×111434342² = 24835225153945928, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111434341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27858584 + ... + 27858587.

It is an arithmetic number, because the mean of its divisors is an integer number (41787879).

Almost surely, 2^111434342 is an apocalyptic number.

111434342 is a deficient number, since it is larger than the sum of its proper divisors (55717174).

111434342 is an equidigital number, since it uses as much as digits as its factorization.

111434342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55717173.

The product of its digits is 1152, while the sum is 23.

The square root of 111434342 is about 10556.2465867372. The cubic root of 111434342 is about 481.2155850580.

Adding to 111434342 its reverse (243434111), we get a palindrome (354868453).

The spelling of 111434342 in words is "one hundred eleven million, four hundred thirty-four thousand, three hundred forty-two".