121424101311 has 4 divisors (see below), whose sum is σ = 161898801752. Its totient is φ = 80949400872.

The previous prime is 121424101301. The next prime is 121424101313. The reversal of 121424101311 is 113101424121.

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

It is not a de Polignac number, because 121424101311 - 2¹⁵ = 121424068543 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 (121424101313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20237350216 + ... + 20237350221.

It is an arithmetic number, because the mean of its divisors is an integer number (40474700438).

Almost surely, 2^121424101311 is an apocalyptic number.

121424101311 is a deficient number, since it is larger than the sum of its proper divisors (40474700441).

121424101311 is an equidigital number, since it uses as much as digits as its factorization.

121424101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40474700440.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 121424101311 its reverse (113101424121), we get a palindrome (234525525432).

The spelling of 121424101311 in words is "one hundred twenty-one billion, four hundred twenty-four million, one hundred one thousand, three hundred eleven".