121343220043 has 8 divisors (see below), whose sum is σ = 127247025600. Its totient is φ = 115554051648.

The previous prime is 121343219981. The next prime is 121343220067. The reversal of 121343220043 is 340022343121.

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 121343220043 - 2¹³ = 121343211851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121343220343) 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 7 ways as a sum of consecutive naturals, for example, 28657123 + ... + 28661356.

It is an arithmetic number, because the mean of its divisors is an integer number (15905878200).

Almost surely, 2^121343220043 is an apocalyptic number.

121343220043 is a deficient number, since it is larger than the sum of its proper divisors (5903805557).

121343220043 is an equidigital number, since it uses as much as digits as its factorization.

121343220043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57318581.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 121343220043 its reverse (340022343121), we get a palindrome (461365563164).

The spelling of 121343220043 in words is "one hundred twenty-one billion, three hundred forty-three million, two hundred twenty thousand, forty-three".