1020452303203 has 4 divisors (see below), whose sum is σ = 1020492657808. Its totient is φ = 1020411948600.

The previous prime is 1020452303177. The next prime is 1020452303209. The reversal of 1020452303203 is 3023032540201.

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 1020452303203 - 2³³ = 1011862368611 is a prime.

It is a super-2 number, since 2×1020452303203² (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 (1020452303209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20139348 + ... + 20189953.

It is an arithmetic number, because the mean of its divisors is an integer number (255123164452).

Almost surely, 2^{1020452303203} is an apocalyptic number.

1020452303203 is a deficient number, since it is larger than the sum of its proper divisors (40354605).

1020452303203 is an equidigital number, since it uses as much as digits as its factorization.

1020452303203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40354604.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 1020452303203 its reverse (3023032540201), we get a palindrome (4043484843404).

The spelling of 1020452303203 in words is "one trillion, twenty billion, four hundred fifty-two million, three hundred three thousand, two hundred three".