1020003223003 has 4 divisors (see below), whose sum is σ = 1020360244840. Its totient is φ = 1019646201168.

The previous prime is 1020003222961. The next prime is 1020003223009. The reversal of 1020003223003 is 3003223000201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1020003223003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020003223009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 178506633 + ... + 178512346.

It is an arithmetic number, because the mean of its divisors is an integer number (255090061210).

Almost surely, 2^{1020003223003} is an apocalyptic number.

1020003223003 is a deficient number, since it is larger than the sum of its proper divisors (357021837).

1020003223003 is an equidigital number, since it uses as much as digits as its factorization.

1020003223003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357021836.

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

Adding to 1020003223003 its reverse (3003223000201), we get a palindrome (4023226223204).

The spelling of 1020003223003 in words is "one trillion, twenty billion, three million, two hundred twenty-three thousand, three".