1020243053303 has 4 divisors (see below), whose sum is σ = 1020245853648. Its totient is φ = 1020240252960.

The previous prime is 1020243053293. The next prime is 1020243053311. The reversal of 1020243053303 is 3033503420201.

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 1020243053303 - 2⁴ = 1020243053287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020243053393) 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, 754403 + ... + 1615428.

It is an arithmetic number, because the mean of its divisors is an integer number (255061463412).

Almost surely, 2^{1020243053303} is an apocalyptic number.

1020243053303 is a deficient number, since it is larger than the sum of its proper divisors (2800345).

1020243053303 is an equidigital number, since it uses as much as digits as its factorization.

1020243053303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2800344.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 1020243053303 its reverse (3033503420201), we get a palindrome (4053746473504).

The spelling of 1020243053303 in words is "one trillion, twenty billion, two hundred forty-three million, fifty-three thousand, three hundred three".