12323565650549 has 2 divisors, whose sum is σ = 12323565650550. Its totient is φ = 12323565650548.

The previous prime is 12323565650537. The next prime is 12323565650573. The reversal of 12323565650549 is 94505656532321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11962536516100 + 361029134449 = 3458690^2 + 600857^2 .

It is a cyclic number.

It is not a de Polignac number, because 12323565650549 - 2⁸ = 12323565650293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12323565650494 and 12323565650503.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12323565659549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6161782825274 + 6161782825275.

It is an arithmetic number, because the mean of its divisors is an integer number (6161782825275).

Almost surely, 2^{12323565650549} is an apocalyptic number.

It is an amenable number.

12323565650549 is a deficient number, since it is larger than the sum of its proper divisors (1).

12323565650549 is an equidigital number, since it uses as much as digits as its factorization.

12323565650549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160000, while the sum is 56.

The spelling of 12323565650549 in words is "twelve trillion, three hundred twenty-three billion, five hundred sixty-five million, six hundred fifty thousand, five hundred forty-nine".