12021426240353 has 2 divisors, whose sum is σ = 12021426240354. Its totient is φ = 12021426240352.

The previous prime is 12021426240331. The next prime is 12021426240359. The reversal of 12021426240353 is 35304262412021.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10669061920609 + 1352364319744 = 3266353^2 + 1162912^2 .

It is a cyclic number.

It is not a de Polignac number, because 12021426240353 - 2³⁶ = 11952706763617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021426240359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010713120176 + 6010713120177.

It is an arithmetic number, because the mean of its divisors is an integer number (6010713120177).

Almost surely, 2^{12021426240353} is an apocalyptic number.

It is an amenable number.

12021426240353 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021426240353 is an equidigital number, since it uses as much as digits as its factorization.

12021426240353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 12021426240353 its reverse (35304262412021), we get a palindrome (47325688652374).

The spelling of 12021426240353 in words is "twelve trillion, twenty-one billion, four hundred twenty-six million, two hundred forty thousand, three hundred fifty-three".