103203000121 has 32 divisors (see below), whose sum is σ = 119725149600. Its totient is φ = 88104775680.

The previous prime is 103203000113. The next prime is 103203000133. The reversal of 103203000121 is 121000302301.

It can be written as a sum of positive squares in 16 ways, for example, as 15941840121 + 87261160000 = 126261^2 + 295400^2 .

It is a cyclic number.

It is not a de Polignac number, because 103203000121 - 2³ = 103203000113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103203000151) 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 31 ways as a sum of consecutive naturals, for example, 16565035 + ... + 16571263.

It is an arithmetic number, because the mean of its divisors is an integer number (3741410925).

Almost surely, 2^103203000121 is an apocalyptic number.

It is an amenable number.

103203000121 is a deficient number, since it is larger than the sum of its proper divisors (16522149479).

103203000121 is a wasteful number, since it uses less digits than its factorization.

103203000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7549.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 103203000121 its reverse (121000302301), we get a palindrome (224203302422).

The spelling of 103203000121 in words is "one hundred three billion, two hundred three million, one hundred twenty-one", and thus it is an aban number.