112342021 has 4 divisors (see below), whose sum is σ = 122554944. Its totient is φ = 102129100.

The previous prime is 112342007. The next prime is 112342039. The reversal of 112342021 is 120243211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 120243211 = 11 ⋅10931201.

It is a cyclic number.

It is not a de Polignac number, because 112342021 - 2¹⁹ = 111817733 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112341986 and 112342004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112342081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5106445 + ... + 5106466.

It is an arithmetic number, because the mean of its divisors is an integer number (30638736).

Almost surely, 2^112342021 is an apocalyptic number.

112342021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

112342021 is a deficient number, since it is larger than the sum of its proper divisors (10212923).

112342021 is a wasteful number, since it uses less digits than its factorization.

112342021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10212922.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 112342021 is about 10599.1519000343. The cubic root of 112342021 is about 482.5186204524.

Adding to 112342021 its reverse (120243211), we get a palindrome (232585232).

The spelling of 112342021 in words is "one hundred twelve million, three hundred forty-two thousand, twenty-one".