1000031010103 has 4 divisors (see below), whose sum is σ = 1000115291880. Its totient is φ = 999946728328.

The previous prime is 1000031010101. The next prime is 1000031010131. The reversal of 1000031010103 is 3010101300001.

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 1000031010103 - 2¹ = 1000031010101 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 1000031010103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000031010101) 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, 42123088 + ... + 42146821.

It is an arithmetic number, because the mean of its divisors is an integer number (250028822970).

Almost surely, 2^{1000031010103} is an apocalyptic number.

1000031010103 is a deficient number, since it is larger than the sum of its proper divisors (84281777).

1000031010103 is an equidigital number, since it uses as much as digits as its factorization.

1000031010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84281776.

The product of its (nonzero) digits is 9, while the sum is 10.

Adding to 1000031010103 its reverse (3010101300001), we get a palindrome (4010132310104).

The spelling of 1000031010103 in words is "one trillion, thirty-one million, ten thousand, one hundred three".