1031000010203 has 16 divisors (see below), whose sum is σ = 1048977883200. Its totient is φ = 1013129441280.

The previous prime is 1031000010199. The next prime is 1031000010221. The reversal of 1031000010203 is 3020100001301.

It is a cyclic number.

It is not a de Polignac number, because 1031000010203 - 2² = 1031000010199 is a prime.

It is a super-2 number, since 2×1031000010203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031000015203) 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, 54227963 + ... + 54246971.

It is an arithmetic number, because the mean of its divisors is an integer number (65561117700).

Almost surely, 2^{1031000010203} is an apocalyptic number.

1031000010203 is a deficient number, since it is larger than the sum of its proper divisors (17977872997).

1031000010203 is a wasteful number, since it uses less digits than its factorization.

1031000010203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21782.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 1031000010203 its reverse (3020100001301), we get a palindrome (4051100011504).

The spelling of 1031000010203 in words is "one trillion, thirty-one billion, ten thousand, two hundred three".