1203000123 has 16 divisors (see below), whose sum is σ = 1728106016. Its totient is φ = 739998720.

The previous prime is 1203000049. The next prime is 1203000131. The reversal of 1203000123 is 3210003021.

It is a happy number.

It is not a de Polignac number, because 1203000123 - 2⁸ = 1202999867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1203000099 and 1203000108.

It is not an unprimeable number, because it can be changed into a prime (1203000133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 119211 + ... + 128907.

It is an arithmetic number, because the mean of its divisors is an integer number (108006626).

Almost surely, 2^1203000123 is an apocalyptic number.

1203000123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1203000123 is a deficient number, since it is larger than the sum of its proper divisors (525105893).

1203000123 is a wasteful number, since it uses less digits than its factorization.

1203000123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12894.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1203000123 is about 34684.2921651862. The cubic root of 1203000123 is about 1063.5434173033.

Adding to 1203000123 its reverse (3210003021), we get a palindrome (4413003144).

The spelling of 1203000123 in words is "one billion, two hundred three million, one hundred twenty-three", and thus it is an aban number.