125123003 has 4 divisors (see below), whose sum is σ = 125378328. Its totient is φ = 124867680.

The previous prime is 125122957. The next prime is 125123051. The reversal of 125123003 is 300321521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 300321521 = 31 ⋅9687791.

It is a cyclic number.

It is not a de Polignac number, because 125123003 - 2¹² = 125118907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (125123093) 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, 126926 + ... + 127907.

It is an arithmetic number, because the mean of its divisors is an integer number (31344582).

Almost surely, 2^125123003 is an apocalyptic number.

125123003 is a deficient number, since it is larger than the sum of its proper divisors (255325).

125123003 is an equidigital number, since it uses as much as digits as its factorization.

125123003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255324.

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 125123003 is about 11185.8393963082. The cubic root of 125123003 is about 500.1639502348.

Adding to 125123003 its reverse (300321521), we get a palindrome (425444524).

The spelling of 125123003 in words is "one hundred twenty-five million, one hundred twenty-three thousand, three".