1203021231303 has 4 divisors (see below), whose sum is σ = 1604028308408. Its totient is φ = 802014154200.

The previous prime is 1203021231301. The next prime is 1203021231319. The reversal of 1203021231303 is 3031321203021.

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

It is not a de Polignac number, because 1203021231303 - 2¹ = 1203021231301 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1203021231303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1203021231301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 200503538548 + ... + 200503538553.

It is an arithmetic number, because the mean of its divisors is an integer number (401007077102).

Almost surely, 2^{1203021231303} is an apocalyptic number.

1203021231303 is a deficient number, since it is larger than the sum of its proper divisors (401007077105).

1203021231303 is an equidigital number, since it uses as much as digits as its factorization.

1203021231303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 401007077104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1203021231303 its reverse (3031321203021), we get a palindrome (4234342434324).

The spelling of 1203021231303 in words is "one trillion, two hundred three billion, twenty-one million, two hundred thirty-one thousand, three hundred three".