121304043 has 12 divisors (see below), whose sum is σ = 200248048. Its totient is φ = 69316560.

The previous prime is 121304021. The next prime is 121304101. The reversal of 121304043 is 340403121.

It is not a de Polignac number, because 121304043 - 2⁵ = 121304011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121304003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 962668 + ... + 962793.

Almost surely, 2^121304043 is an apocalyptic number.

121304043 is a deficient number, since it is larger than the sum of its proper divisors (78944005).

121304043 is a wasteful number, since it uses less digits than its factorization.

121304043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1925474 (or 1925471 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 121304043 is about 11013.8114656099. The cubic root of 121304043 is about 495.0226741986.

Adding to 121304043 its reverse (340403121), we get a palindrome (461707164).

The spelling of 121304043 in words is "one hundred twenty-one million, three hundred four thousand, forty-three".