126013103 has 4 divisors (see below), whose sum is σ = 126478368. Its totient is φ = 125547840.

The previous prime is 126013099. The next prime is 126013123. The reversal of 126013103 is 301310621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 126013103 - 2² = 126013099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126013123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 232226 + ... + 232767.

It is an arithmetic number, because the mean of its divisors is an integer number (31619592).

Almost surely, 2^126013103 is an apocalyptic number.

126013103 is a deficient number, since it is larger than the sum of its proper divisors (465265).

126013103 is an equidigital number, since it uses as much as digits as its factorization.

126013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465264.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 126013103 is about 11225.5557991576. Note that the first 3 decimals coincide. The cubic root of 126013103 is about 501.3471710007.

Adding to 126013103 its reverse (301310621), we get a palindrome (427323724).

The spelling of 126013103 in words is "one hundred twenty-six million, thirteen thousand, one hundred three".