1000423203 has 16 divisors (see below), whose sum is σ = 1498963200. Its totient is φ = 588877344.

The previous prime is 1000423201. The next prime is 1000423211. The reversal of 1000423203 is 3023240001.

It is not a de Polignac number, because 1000423203 - 2¹ = 1000423201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000423201) 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, 556753 + ... + 558546.

It is an arithmetic number, because the mean of its divisors is an integer number (93685200).

Almost surely, 2^1000423203 is an apocalyptic number.

1000423203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1000423203 is a deficient number, since it is larger than the sum of its proper divisors (498539997).

1000423203 is a wasteful number, since it uses less digits than its factorization.

1000423203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115338.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1000423203 is about 31629.4673208386. The cubic root of 1000423203 is about 1000.1410477713.

Adding to 1000423203 its reverse (3023240001), we get a palindrome (4023663204).

The spelling of 1000423203 in words is "one billion, four hundred twenty-three thousand, two hundred three".