121443323 has 4 divisors (see below), whose sum is σ = 121834128. Its totient is φ = 121052520.

The previous prime is 121443319. The next prime is 121443341. The reversal of 121443323 is 323344121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 323344121 = 317 ⋅1020013.

It is a cyclic number.

It is not a de Polignac number, because 121443323 - 2² = 121443319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121443923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 194936 + ... + 195557.

It is an arithmetic number, because the mean of its divisors is an integer number (30458532).

Almost surely, 2^121443323 is an apocalyptic number.

121443323 is a deficient number, since it is larger than the sum of its proper divisors (390805).

121443323 is an equidigital number, since it uses as much as digits as its factorization.

121443323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390804.

The product of its digits is 1728, while the sum is 23.

The square root of 121443323 is about 11020.1326217065. The cubic root of 121443323 is about 495.2120616397.

Adding to 121443323 its reverse (323344121), we get a palindrome (444787444).

The spelling of 121443323 in words is "one hundred twenty-one million, four hundred forty-three thousand, three hundred twenty-three".