112133421 has 36 divisors (see below), whose sum is σ = 175593600. Its totient is φ = 68763168.

The previous prime is 112133419. The next prime is 112133429. The reversal of 112133421 is 124331211.

112133421 is a `hidden beast` number, since 112 + 133 + 421 = 666.

It is not a de Polignac number, because 112133421 - 2¹ = 112133419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112133394 and 112133403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112133429) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 233860 + ... + 234338.

It is an arithmetic number, because the mean of its divisors is an integer number (4877600).

Almost surely, 2^112133421 is an apocalyptic number.

It is an amenable number.

112133421 is a deficient number, since it is larger than the sum of its proper divisors (63460179).

112133421 is a wasteful number, since it uses less digits than its factorization.

112133421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 538 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 112133421 is about 10589.3069178299. The cubic root of 112133421 is about 482.2197837797.

Adding to 112133421 its reverse (124331211), we get a palindrome (236464632).

The spelling of 112133421 in words is "one hundred twelve million, one hundred thirty-three thousand, four hundred twenty-one".