1131103203 has 16 divisors (see below), whose sum is σ = 1554788256. Its totient is φ = 730978560.

The previous prime is 1131103199. The next prime is 1131103217. The reversal of 1131103203 is 3023011311.

It is not a de Polignac number, because 1131103203 - 2² = 1131103199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131103243) 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, 9976 + ... + 48597.

It is an arithmetic number, because the mean of its divisors is an integer number (97174266).

Almost surely, 2^1131103203 is an apocalyptic number.

1131103203 is a deficient number, since it is larger than the sum of its proper divisors (423685053).

1131103203 is a wasteful number, since it uses less digits than its factorization.

1131103203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58774.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131103203 is about 33631.8777798683. The cubic root of 1131103203 is about 1041.9192871367.

Adding to 1131103203 its reverse (3023011311), we get a palindrome (4154114514).

The spelling of 1131103203 in words is "one billion, one hundred thirty-one million, one hundred three thousand, two hundred three".