1023203203 has 16 divisors (see below), whose sum is σ = 1140543072. Its totient is φ = 910080000.

The previous prime is 1023203183. The next prime is 1023203221. The reversal of 1023203203 is 3023023201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1023203203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1023203263) 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, 125553 + ... + 133453.

It is an arithmetic number, because the mean of its divisors is an integer number (71283942).

Almost surely, 2^1023203203 is an apocalyptic number.

1023203203 is a deficient number, since it is larger than the sum of its proper divisors (117339869).

1023203203 is a wasteful number, since it uses less digits than its factorization.

1023203203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8166.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 1023203203 is about 31987.5476240365. The cubic root of 1023203203 is about 1007.6753394442.

Adding to 1023203203 its reverse (3023023201), we get a palindrome (4046226404).

The spelling of 1023203203 in words is "one billion, twenty-three million, two hundred three thousand, two hundred three".