126320103 has 48 divisors (see below), whose sum is σ = 227223360. Its totient is φ = 65843712.

The previous prime is 126320063. The next prime is 126320123. The reversal of 126320103 is 301023621.

It is not a de Polignac number, because 126320103 - 2⁶ = 126320039 is a prime.

It is a super-4 number, since 4×126320103⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126320123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 72025 + ... + 73757.

It is an arithmetic number, because the mean of its divisors is an integer number (4733820).

Almost surely, 2^126320103 is an apocalyptic number.

126320103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

126320103 is a deficient number, since it is larger than the sum of its proper divisors (100903257).

126320103 is a wasteful number, since it uses less digits than its factorization.

126320103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1848 (or 1845 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 126320103 is about 11239.2216367505. The cubic root of 126320103 is about 501.7539772662.

Adding to 126320103 its reverse (301023621), we get a palindrome (427343724).

The spelling of 126320103 in words is "one hundred twenty-six million, three hundred twenty thousand, one hundred three".