1000203113 has 16 divisors (see below), whose sum is σ = 1233872640. Its totient is φ = 789535296.

The previous prime is 1000203059. The next prime is 1000203119. The reversal of 1000203113 is 3113020001.

It is a cyclic number.

It is not a de Polignac number, because 1000203113 - 2⁶ = 1000203049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000203094 and 1000203103.

It is not an unprimeable number, because it can be changed into a prime (1000203119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27431 + ... + 52467.

It is an arithmetic number, because the mean of its divisors is an integer number (77117040).

Almost surely, 2^1000203113 is an apocalyptic number.

1000203113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1000203113 is a deficient number, since it is larger than the sum of its proper divisors (233669527).

1000203113 is a wasteful number, since it uses less digits than its factorization.

1000203113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25496.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000203113 is about 31625.9879371380. The cubic root of 1000203113 is about 1000.0676997500.

Adding to 1000203113 its reverse (3113020001), we get a palindrome (4113223114).

The spelling of 1000203113 in words is "one billion, two hundred three thousand, one hundred thirteen".