1031310303103 has 16 divisors (see below), whose sum is σ = 1088296282080. Its totient is φ = 974595815424.

The previous prime is 1031310303077. The next prime is 1031310303109. The reversal of 1031310303103 is 3013030131301.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1031310303103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031310303109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73484775 + ... + 73498807.

It is an arithmetic number, because the mean of its divisors is an integer number (68018517630).

Almost surely, 2^{1031310303103} is an apocalyptic number.

1031310303103 is a deficient number, since it is larger than the sum of its proper divisors (56985978977).

1031310303103 is a wasteful number, since it uses less digits than its factorization.

1031310303103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23418.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 1031310303103 its reverse (3013030131301), we get a palindrome (4044340434404).

The spelling of 1031310303103 in words is "one trillion, thirty-one billion, three hundred ten million, three hundred three thousand, one hundred three".