112121523 has 16 divisors (see below), whose sum is σ = 166466560. Its totient is φ = 74585448.

The previous prime is 112121521. The next prime is 112121533. The reversal of 112121523 is 325121211.

112121523 is a `hidden beast` number, since 1 + 121 + 21 + 523 = 666.

It is not a de Polignac number, because 112121523 - 2¹ = 112121521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 112121496 and 112121505.

It is not an unprimeable number, because it can be changed into a prime (112121521) 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, 8886 + ... + 17412.

It is an arithmetic number, because the mean of its divisors is an integer number (10404160).

Almost surely, 2^112121523 is an apocalyptic number.

112121523 is a deficient number, since it is larger than the sum of its proper divisors (54345037).

112121523 is an equidigital number, since it uses as much as digits as its factorization.

112121523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023 (or 9017 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 112121523 is about 10588.7451097852. The cubic root of 112121523 is about 482.2027277469.

Adding to 112121523 its reverse (325121211), we get a palindrome (437242734).

The spelling of 112121523 in words is "one hundred twelve million, one hundred twenty-one thousand, five hundred twenty-three".