1031220012203 has 4 divisors (see below), whose sum is σ = 1031444634528. Its totient is φ = 1030995389880.

The previous prime is 1031220012167. The next prime is 1031220012209. The reversal of 1031220012203 is 3022100221301.

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 1031220012203 - 2¹² = 1031220008107 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1031220012209) 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, 112304276 + ... + 112313457.

It is an arithmetic number, because the mean of its divisors is an integer number (257861158632).

Almost surely, 2^{1031220012203} is an apocalyptic number.

1031220012203 is a deficient number, since it is larger than the sum of its proper divisors (224622325).

1031220012203 is an equidigital number, since it uses as much as digits as its factorization.

1031220012203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224622324.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1031220012203 its reverse (3022100221301), we get a palindrome (4053320233504).

The spelling of 1031220012203 in words is "one trillion, thirty-one billion, two hundred twenty million, twelve thousand, two hundred three".