112143420 has 48 divisors (see below), whose sum is σ = 348892320. Its totient is φ = 29904768.

The previous prime is 112143419. The next prime is 112143433. The reversal of 112143420 is 24341211.

It is a super-2 number, since 2×112143420² = 25152293298592800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 112143393 and 112143402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103297 + ... + 104376.

It is an arithmetic number, because the mean of its divisors is an integer number (7268590).

Almost surely, 2^112143420 is an apocalyptic number.

112143420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112143420 is an abundant number, since it is smaller than the sum of its proper divisors (236748900).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

112143420 is a wasteful number, since it uses less digits than its factorization.

112143420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207691 (or 207683 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 112143420 is about 10589.7790345219. The cubic root of 112143420 is about 482.2341166231.

Adding to 112143420 its reverse (24341211), we get a palindrome (136484631).

The spelling of 112143420 in words is "one hundred twelve million, one hundred forty-three thousand, four hundred twenty".