112133431 has 4 divisors (see below), whose sum is σ = 112171864. Its totient is φ = 112095000.

The previous prime is 112133429. The next prime is 112133443. The reversal of 112133431 is 134331211.

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 112133431 - 2¹ = 112133429 is a prime.

It is a super-4 number, since 4×112133431⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112133399 and 112133408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112133471) 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, 14445 + ... + 20806.

It is an arithmetic number, because the mean of its divisors is an integer number (28042966).

Almost surely, 2^112133431 is an apocalyptic number.

112133431 is a deficient number, since it is larger than the sum of its proper divisors (38433).

112133431 is an equidigital number, since it uses as much as digits as its factorization.

112133431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38432.

The product of its digits is 216, while the sum is 19.

The square root of 112133431 is about 10589.3073900043. The cubic root of 112133431 is about 482.2197981144.

Adding to 112133431 its reverse (134331211), we get a palindrome (246464642).

The spelling of 112133431 in words is "one hundred twelve million, one hundred thirty-three thousand, four hundred thirty-one".