112043431 has 4 divisors (see below), whose sum is σ = 114157512. Its totient is φ = 109929352.

The previous prime is 112043417. The next prime is 112043471. The reversal of 112043431 is 134340211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 112043431 - 2⁷ = 112043303 is a prime.

It is a super-2 number, since 2×112043431² = 25107460860503522, 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 = 112043399 and 112043408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112043471) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056961 + ... + 1057066.

It is an arithmetic number, because the mean of its divisors is an integer number (28539378).

Almost surely, 2^112043431 is an apocalyptic number.

112043431 is a deficient number, since it is larger than the sum of its proper divisors (2114081).

112043431 is an equidigital number, since it uses as much as digits as its factorization.

112043431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2114080.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 112043431 is about 10585.0569672534. The cubic root of 112043431 is about 482.0907512645.

Adding to 112043431 its reverse (134340211), we get a palindrome (246383642).

It can be divided in two parts, 1120 and 43431, that added together give a triangular number (44551 = T₂₉₈).

The spelling of 112043431 in words is "one hundred twelve million, forty-three thousand, four hundred thirty-one".