1131003203 has 8 divisors (see below), whose sum is σ = 1239119856. Its totient is φ = 1023769600.

The previous prime is 1131003197. The next prime is 1131003221. The reversal of 1131003203 is 3023001311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1131003203 - 2¹⁴ = 1130986819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131003283) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218078 + ... + 223203.

It is an arithmetic number, because the mean of its divisors is an integer number (154889982).

Almost surely, 2^1131003203 is an apocalyptic number.

1131003203 is a deficient number, since it is larger than the sum of its proper divisors (108116653).

1131003203 is a wasteful number, since it uses less digits than its factorization.

1131003203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 441525.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 1131003203 is about 33630.3910622520. The cubic root of 1131003203 is about 1041.8885811265. Note that the first 3 decimals are identical.

Adding to 1131003203 its reverse (3023001311), we get a palindrome (4154004514).

The spelling of 1131003203 in words is "one billion, one hundred thirty-one million, three thousand, two hundred three".