12121140413 has 2 divisors, whose sum is σ = 12121140414. Its totient is φ = 12121140412.

The previous prime is 12121140401. The next prime is 12121140419. The reversal of 12121140413 is 31404112121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10149958009 + 1971182404 = 100747^2 + 44398^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121140413 - 2⁴ = 12121140397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12121140419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060570206 + 6060570207.

It is an arithmetic number, because the mean of its divisors is an integer number (6060570207).

Almost surely, 2^12121140413 is an apocalyptic number.

It is an amenable number.

12121140413 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121140413 is an equidigital number, since it uses as much as digits as its factorization.

12121140413 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 12121140413 its reverse (31404112121), we get a palindrome (43525252534).

The spelling of 12121140413 in words is "twelve billion, one hundred twenty-one million, one hundred forty thousand, four hundred thirteen".