123344444449 has 2 divisors, whose sum is σ = 123344444450. Its totient is φ = 123344444448.

The previous prime is 123344444437. The next prime is 123344444533. The reversal of 123344444449 is 944444443321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 91653324049 + 31691120400 = 302743^2 + 178020^2 .

It is an emirp because it is prime and its reverse (944444443321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123344444449 is a prime.

It is a plaindrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 123344444399 and 123344444408.

It is not a weakly prime, because it can be changed into another prime (123344444749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61672222224 + 61672222225.

It is an arithmetic number, because the mean of its divisors is an integer number (61672222225).

Almost surely, 2^123344444449 is an apocalyptic number.

It is an amenable number.

123344444449 is a deficient number, since it is larger than the sum of its proper divisors (1).

123344444449 is an equidigital number, since it uses as much as digits as its factorization.

123344444449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2654208, while the sum is 46.

The spelling of 123344444449 in words is "one hundred twenty-three billion, three hundred forty-four million, four hundred forty-four thousand, four hundred forty-nine".