1203320003 has 24 divisors (see below), whose sum is σ = 1294338528. Its totient is φ = 1118154752.

The previous prime is 1203319987. The next prime is 1203320009. The reversal of 1203320003 is 3000233021.

It is not a de Polignac number, because 1203320003 - 2⁴ = 1203319987 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203320003.

It is not an unprimeable number, because it can be changed into a prime (1203320009) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4682051 + ... + 4682307.

It is an arithmetic number, because the mean of its divisors is an integer number (53930772).

Almost surely, 2^1203320003 is an apocalyptic number.

1203320003 is a deficient number, since it is larger than the sum of its proper divisors (91018525).

1203320003 is a wasteful number, since it uses less digits than its factorization.

1203320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 523 (or 500 counting only the distinct ones).

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

The square root of 1203320003 is about 34688.9031680161. The cubic root of 1203320003 is about 1063.6376750157.

Adding to 1203320003 its reverse (3000233021), we get a palindrome (4203553024).

The spelling of 1203320003 in words is "one billion, two hundred three million, three hundred twenty thousand, three".