121304343 has 4 divisors (see below), whose sum is σ = 161739128. Its totient is φ = 80869560.

The previous prime is 121304329. The next prime is 121304347. The reversal of 121304343 is 343403121.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 121304343 - 2¹³ = 121296151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121304347) 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 3 ways as a sum of consecutive naturals, for example, 20217388 + ... + 20217393.

It is an arithmetic number, because the mean of its divisors is an integer number (40434782).

Almost surely, 2^121304343 is an apocalyptic number.

121304343 is a deficient number, since it is larger than the sum of its proper divisors (40434785).

121304343 is an equidigital number, since it uses as much as digits as its factorization.

121304343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40434784.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 121304343 is about 11013.8250848649. The cubic root of 121304343 is about 495.0230822825.

Adding to 121304343 its reverse (343403121), we get a palindrome (464707464).

The spelling of 121304343 in words is "one hundred twenty-one million, three hundred four thousand, three hundred forty-three".