112121345 has 8 divisors (see below), whose sum is σ = 153766464. Its totient is φ = 76883184.

The previous prime is 112121333. The next prime is 112121363. The reversal of 112121345 is 543121211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 112121345 - 2⁶ = 112121281 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1601699 + ... + 1601768.

It is an arithmetic number, because the mean of its divisors is an integer number (19220808).

Almost surely, 2^112121345 is an apocalyptic number.

It is an amenable number.

112121345 is a deficient number, since it is larger than the sum of its proper divisors (41645119).

112121345 is an equidigital number, since it uses as much as digits as its factorization.

112121345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3203479.

The product of its digits is 240, while the sum is 20.

The square root of 112121345 is about 10588.7367046310. The cubic root of 112121345 is about 482.2024725710.

Adding to 112121345 its reverse (543121211), we get a palindrome (655242556).

The spelling of 112121345 in words is "one hundred twelve million, one hundred twenty-one thousand, three hundred forty-five".