1212243341 has 2 divisors, whose sum is σ = 1212243342. Its totient is φ = 1212243340.

The previous prime is 1212243299. The next prime is 1212243343. The reversal of 1212243341 is 1433422121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 706443241 + 505800100 = 26579^2 + 22490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212243341 - 2¹⁴ = 1212226957 is a prime.

Together with 1212243343, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212243343) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606121670 + 606121671.

It is an arithmetic number, because the mean of its divisors is an integer number (606121671).

Almost surely, 2^1212243341 is an apocalyptic number.

It is an amenable number.

1212243341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212243341 is an equidigital number, since it uses as much as digits as its factorization.

1212243341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

The square root of 1212243341 is about 34817.2850894495. The cubic root of 1212243341 is about 1066.2603726817.

Adding to 1212243341 its reverse (1433422121), we get a palindrome (2645665462).

The spelling of 1212243341 in words is "one billion, two hundred twelve million, two hundred forty-three thousand, three hundred forty-one".