1131038203 has 6 divisors (see below), whose sum is σ = 1201483796. Its totient is φ = 1064506272.

The previous prime is 1131038143. The next prime is 1131038291. The reversal of 1131038203 is 3028301311.

It is not a de Polignac number, because 1131038203 - 2¹³ = 1131030011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131038003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1956525 + ... + 1957102.

Almost surely, 2^1131038203 is an apocalyptic number.

1131038203 is a deficient number, since it is larger than the sum of its proper divisors (70445593).

1131038203 is an equidigital number, since it uses as much as digits as its factorization.

1131038203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3913661 (or 3913644 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1131038203 is about 33630.9114208937. The cubic root of 1131038203 is about 1041.8993284359.

Adding to 1131038203 its reverse (3028301311), we get a palindrome (4159339514).

The spelling of 1131038203 in words is "one billion, one hundred thirty-one million, thirty-eight thousand, two hundred three".