12355521383 has 2 divisors, whose sum is σ = 12355521384. Its totient is φ = 12355521382.

The previous prime is 12355521379. The next prime is 12355521397. The reversal of 12355521383 is 38312555321.

It is a happy number.

12355521383 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12355521383 - 2² = 12355521379 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12355521313) 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, 6177760691 + 6177760692.

It is an arithmetic number, because the mean of its divisors is an integer number (6177760692).

Almost surely, 2^12355521383 is an apocalyptic number.

12355521383 is a deficient number, since it is larger than the sum of its proper divisors (1).

12355521383 is an equidigital number, since it uses as much as digits as its factorization.

12355521383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108000, while the sum is 38.

The spelling of 12355521383 in words is "twelve billion, three hundred fifty-five million, five hundred twenty-one thousand, three hundred eighty-three".