121113443 has 8 divisors (see below), whose sum is σ = 133433136. Its totient is φ = 109012000.

The previous prime is 121113439. The next prime is 121113449. The reversal of 121113443 is 344311121.

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

It is a cyclic number.

It is not a de Polignac number, because 121113443 - 2² = 121113439 is a prime.

It is a Duffinian number.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (121113449) by changing a digit.

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, 53396 + ... + 55617.

It is an arithmetic number, because the mean of its divisors is an integer number (16679142).

Almost surely, 2^121113443 is an apocalyptic number.

121113443 is a deficient number, since it is larger than the sum of its proper divisors (12319693).

121113443 is a wasteful number, since it uses less digits than its factorization.

121113443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109125.

The product of its digits is 288, while the sum is 20.

The square root of 121113443 is about 11005.1552919529. The cubic root of 121113443 is about 494.7632687704.

Adding to 121113443 its reverse (344311121), we get a palindrome (465424564).

The spelling of 121113443 in words is "one hundred twenty-one million, one hundred thirteen thousand, four hundred forty-three".