121343222113 has 4 divisors (see below), whose sum is σ = 121864008708. Its totient is φ = 120822435520.

The previous prime is 121343222111. The next prime is 121343222123. The reversal of 121343222113 is 311222343121.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53422001424 + 67921220689 = 231132^2 + 260617^2 .

It is a cyclic number.

It is not a de Polignac number, because 121343222113 - 2¹ = 121343222111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121343222111) 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, 260392948 + ... + 260393413.

It is an arithmetic number, because the mean of its divisors is an integer number (30466002177).

Almost surely, 2^121343222113 is an apocalyptic number.

It is an amenable number.

121343222113 is a deficient number, since it is larger than the sum of its proper divisors (520786595).

121343222113 is an equidigital number, since it uses as much as digits as its factorization.

121343222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 520786594.

The product of its digits is 1728, while the sum is 25.

Adding to 121343222113 its reverse (311222343121), we get a palindrome (432565565234).

The spelling of 121343222113 in words is "one hundred twenty-one billion, three hundred forty-three million, two hundred twenty-two thousand, one hundred thirteen".