121613411 has 2 divisors, whose sum is σ = 121613412. Its totient is φ = 121613410.

The previous prime is 121613381. The next prime is 121613423. The reversal of 121613411 is 114316121.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121613411 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (121613431) 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 as a sum of consecutive naturals, namely, 60806705 + 60806706.

It is an arithmetic number, because the mean of its divisors is an integer number (60806706).

Almost surely, 2^121613411 is an apocalyptic number.

121613411 is a deficient number, since it is larger than the sum of its proper divisors (1).

121613411 is an equidigital number, since it uses as much as digits as its factorization.

121613411 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 121613411 is about 11027.8470700314. The cubic root of 121613411 is about 495.4431442959.

Adding to 121613411 its reverse (114316121), we get a palindrome (235929532).

The spelling of 121613411 in words is "one hundred twenty-one million, six hundred thirteen thousand, four hundred eleven".