1000203323 has 16 divisors (see below), whose sum is σ = 1221889536. Its totient is φ = 800036160.

The previous prime is 1000203317. The next prime is 1000203329. The reversal of 1000203323 is 3233020001.

It is an interprime number because it is at equal distance from previous prime (1000203317) and next prime (1000203329).

It is not a de Polignac number, because 1000203323 - 2⁴ = 1000203307 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000203298 and 1000203307.

It is not an unprimeable number, because it can be changed into a prime (1000203329) 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, 69161 + ... + 82362.

It is an arithmetic number, because the mean of its divisors is an integer number (76368096).

Almost surely, 2^1000203323 is an apocalyptic number.

1000203323 is a deficient number, since it is larger than the sum of its proper divisors (221686213).

1000203323 is a wasteful number, since it uses less digits than its factorization.

1000203323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151594.

The product of its (nonzero) digits is 108, while the sum is 14.

The square root of 1000203323 is about 31625.9912571922. The cubic root of 1000203323 is about 1000.0677697405.

Adding to 1000203323 its reverse (3233020001), we get a palindrome (4233223324).

The spelling of 1000203323 in words is "one billion, two hundred three thousand, three hundred twenty-three".