121423443 has 8 divisors (see below), whose sum is σ = 165663168. Its totient is φ = 79066344.

The previous prime is 121423429. The next prime is 121423451. The reversal of 121423443 is 344324121.

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

It is not a de Polignac number, because 121423443 - 2⁵ = 121423411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121423453) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 470505 + ... + 470762.

It is an arithmetic number, because the mean of its divisors is an integer number (20707896).

Almost surely, 2^121423443 is an apocalyptic number.

121423443 is a deficient number, since it is larger than the sum of its proper divisors (44239725).

121423443 is an equidigital number, since it uses as much as digits as its factorization.

121423443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941313.

The product of its digits is 2304, while the sum is 24.

The square root of 121423443 is about 11019.2305992751. The cubic root of 121423443 is about 495.1850384633.

Adding to 121423443 its reverse (344324121), we get a palindrome (465747564).

The spelling of 121423443 in words is "one hundred twenty-one million, four hundred twenty-three thousand, four hundred forty-three".