1031320103303 has 24 divisors (see below), whose sum is σ = 1263348328320. Its totient is φ = 837126465840.

The previous prime is 1031320103291. The next prime is 1031320103347. The reversal of 1031320103303 is 3033010231301.

It is not a de Polignac number, because 1031320103303 - 2¹⁸ = 1031319841159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031320103503) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2109008 + ... + 2551578.

It is an arithmetic number, because the mean of its divisors is an integer number (52639513680).

Almost surely, 2^{1031320103303} is an apocalyptic number.

1031320103303 is a deficient number, since it is larger than the sum of its proper divisors (232028225017).

1031320103303 is a wasteful number, since it uses less digits than its factorization.

1031320103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 445107 (or 445100 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 1031320103303 its reverse (3033010231301), we get a palindrome (4064330334604).

The spelling of 1031320103303 in words is "one trillion, thirty-one billion, three hundred twenty million, one hundred three thousand, three hundred three".