121413311 has 2 divisors, whose sum is σ = 121413312. Its totient is φ = 121413310.

The previous prime is 121413293. The next prime is 121413323. The reversal of 121413311 is 113314121.

It is a strong prime.

It is an emirp because it is prime and its reverse (113314121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121413311 - 2²² = 117219007 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121413311.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121413011) 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 as a sum of consecutive naturals, namely, 60706655 + 60706656.

It is an arithmetic number, because the mean of its divisors is an integer number (60706656).

Almost surely, 2^121413311 is an apocalyptic number.

121413311 is a deficient number, since it is larger than the sum of its proper divisors (1).

121413311 is an equidigital number, since it uses as much as digits as its factorization.

121413311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72, while the sum is 17.

The square root of 121413311 is about 11018.7708479667. The cubic root of 121413311 is about 495.1712647519.

Adding to 121413311 its reverse (113314121), we get a palindrome (234727432).

The spelling of 121413311 in words is "one hundred twenty-one million, four hundred thirteen thousand, three hundred eleven".