13444403123 has 2 divisors, whose sum is σ = 13444403124. Its totient is φ = 13444403122.

The previous prime is 13444403087. The next prime is 13444403129. The reversal of 13444403123 is 32130444431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13444403123 - 2¹² = 13444399027 is a prime.

It is not a weakly prime, because it can be changed into another prime (13444403129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6722201561 + 6722201562.

It is an arithmetic number, because the mean of its divisors is an integer number (6722201562).

Almost surely, 2^13444403123 is an apocalyptic number.

13444403123 is a deficient number, since it is larger than the sum of its proper divisors (1).

13444403123 is an equidigital number, since it uses as much as digits as its factorization.

13444403123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 13444403123 its reverse (32130444431), we get a palindrome (45574847554).

The spelling of 13444403123 in words is "thirteen billion, four hundred forty-four million, four hundred three thousand, one hundred twenty-three".