11031231132203 has 4 divisors (see below), whose sum is σ = 11031294148368. Its totient is φ = 11031168116040.

The previous prime is 11031231132191. The next prime is 11031231132277. The reversal of 11031231132203 is 30223113213011.

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 11031231132203 - 2⁶ = 11031231132139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11031231132283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31244768 + ... + 31595853.

It is an arithmetic number, because the mean of its divisors is an integer number (2757823537092).

Almost surely, 2^{11031231132203} is an apocalyptic number.

11031231132203 is a deficient number, since it is larger than the sum of its proper divisors (63016165).

11031231132203 is an equidigital number, since it uses as much as digits as its factorization.

11031231132203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63016164.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 11031231132203 its reverse (30223113213011), we get a palindrome (41254344345214).

The spelling of 11031231132203 in words is "eleven trillion, thirty-one billion, two hundred thirty-one million, one hundred thirty-two thousand, two hundred three".