1020204203 has 4 divisors (see below), whose sum is σ = 1053114048. Its totient is φ = 987294360.

The previous prime is 1020204191. The next prime is 1020204277. The reversal of 1020204203 is 3024020201.

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 1020204203 - 2¹⁶ = 1020138667 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1020204103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16454876 + ... + 16454937.

It is an arithmetic number, because the mean of its divisors is an integer number (263278512).

Almost surely, 2^1020204203 is an apocalyptic number.

1020204203 is a deficient number, since it is larger than the sum of its proper divisors (32909845).

1020204203 is an equidigital number, since it uses as much as digits as its factorization.

1020204203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32909844.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1020204203 is about 31940.6356073263. The cubic root of 1020204203 is about 1006.6898800377.

Adding to 1020204203 its reverse (3024020201), we get a palindrome (4044224404).

The spelling of 1020204203 in words is "one billion, twenty million, two hundred four thousand, two hundred three".