112311021 has 16 divisors (see below), whose sum is σ = 154101248. Its totient is φ = 72705600.

The previous prime is 112310987. The next prime is 112311029. The reversal of 112311021 is 120113211.

It is not a de Polignac number, because 112311021 - 2⁹ = 112310509 is a prime.

It is a super-2 number, since 2×112311021² = 25227530876124882, 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 = 112310988 and 112311006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112311029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109491 + ... + 110511.

It is an arithmetic number, because the mean of its divisors is an integer number (9631328).

Almost surely, 2^112311021 is an apocalyptic number.

It is an amenable number.

112311021 is a deficient number, since it is larger than the sum of its proper divisors (41790227).

112311021 is a wasteful number, since it uses less digits than its factorization.

112311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 112311021 is about 10597.6894179816. The cubic root of 112311021 is about 482.4742338161.

Adding to 112311021 its reverse (120113211), we get a palindrome (232424232).

The spelling of 112311021 in words is "one hundred twelve million, three hundred eleven thousand, twenty-one".