125043103 has 2 divisors, whose sum is σ = 125043104. Its totient is φ = 125043102.

The previous prime is 125043101. The next prime is 125043137. The reversal of 125043103 is 301340521.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 125043103 - 2¹ = 125043101 is a prime.

Together with 125043101, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (125043101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62521551 + 62521552.

It is an arithmetic number, because the mean of its divisors is an integer number (62521552).

Almost surely, 2^125043103 is an apocalyptic number.

125043103 is a deficient number, since it is larger than the sum of its proper divisors (1).

125043103 is an equidigital number, since it uses as much as digits as its factorization.

125043103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 125043103 is about 11182.2673461155. The cubic root of 125043103 is about 500.0574640622.

Adding to 125043103 its reverse (301340521), we get a palindrome (426383624).

The spelling of 125043103 in words is "one hundred twenty-five million, forty-three thousand, one hundred three".