118043431 has 8 divisors (see below), whose sum is σ = 132255504. Its totient is φ = 104411520.

The previous prime is 118043413. The next prime is 118043437. The reversal of 118043431 is 134340811.

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

It is a cyclic number.

It is not a de Polignac number, because 118043431 - 2⁵ = 118043399 is a prime.

It is a super-2 number, since 2×118043431² = 27868503204503522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 118043396 and 118043405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (118043437) 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 in 7 ways as a sum of consecutive naturals, for example, 144610 + ... + 145423.

It is an arithmetic number, because the mean of its divisors is an integer number (16531938).

Almost surely, 2^118043431 is an apocalyptic number.

118043431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

118043431 is a deficient number, since it is larger than the sum of its proper divisors (14212073).

118043431 is a wasteful number, since it uses less digits than its factorization.

118043431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290081.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 118043431 is about 10864.7793811011. The cubic root of 118043431 is about 490.5469818524.

The spelling of 118043431 in words is "one hundred eighteen million, forty-three thousand, four hundred thirty-one".