203000113121 has 16 divisors (see below), whose sum is σ = 224636745984. Its totient is φ = 182272581504.

The previous prime is 203000113103. The next prime is 203000113123. The reversal of 203000113121 is 121311000302.

It is a de Polignac number, because none of the positive numbers 2^k-203000113121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203000113096 and 203000113105.

It is not an unprimeable number, because it can be changed into a prime (203000113123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 919556 + ... + 1118741.

It is an arithmetic number, because the mean of its divisors is an integer number (14039796624).

Almost surely, 2^203000113121 is an apocalyptic number.

It is an amenable number.

203000113121 is a deficient number, since it is larger than the sum of its proper divisors (21636632863).

203000113121 is a wasteful number, since it uses less digits than its factorization.

203000113121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2038520.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 203000113121 its reverse (121311000302), we get a palindrome (324311113423).

The spelling of 203000113121 in words is "two hundred three billion, one hundred thirteen thousand, one hundred twenty-one".