121414343111 has 4 divisors (see below), whose sum is σ = 128556363312. Its totient is φ = 114272322912.

The previous prime is 121414343093. The next prime is 121414343117. The reversal of 121414343111 is 111343414121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111343414121 = 1201 ⋅92708921.

It is a cyclic number.

It is not a de Polignac number, because 121414343111 - 2¹⁰ = 121414342087 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 (121414343117) 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, 3571010075 + ... + 3571010108.

It is an arithmetic number, because the mean of its divisors is an integer number (32139090828).

Almost surely, 2^121414343111 is an apocalyptic number.

121414343111 is a deficient number, since it is larger than the sum of its proper divisors (7142020201).

121414343111 is an equidigital number, since it uses as much as digits as its factorization.

121414343111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7142020200.

The product of its digits is 1152, while the sum is 26.

Adding to 121414343111 its reverse (111343414121), we get a palindrome (232757757232).

The spelling of 121414343111 in words is "one hundred twenty-one billion, four hundred fourteen million, three hundred forty-three thousand, one hundred eleven".