1020304430203 has 4 divisors (see below), whose sum is σ = 1080322337880. Its totient is φ = 960286522528.

The previous prime is 1020304430191. The next prime is 1020304430239. The reversal of 1020304430203 is 3020344030201.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1020304430203 - 2²¹ = 1020302333051 is a prime.

It is a super-2 number, since 2×1020304430203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020304430273) 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, 30008953813 + ... + 30008953846.

It is an arithmetic number, because the mean of its divisors is an integer number (270080584470).

Almost surely, 2^{1020304430203} is an apocalyptic number.

1020304430203 is a deficient number, since it is larger than the sum of its proper divisors (60017907677).

1020304430203 is an equidigital number, since it uses as much as digits as its factorization.

1020304430203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60017907676.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 1020304430203 its reverse (3020344030201), we get a palindrome (4040648460404).

The spelling of 1020304430203 in words is "one trillion, twenty billion, three hundred four million, four hundred thirty thousand, two hundred three".