1131002203 has 4 divisors (see below), whose sum is σ = 1141378480. Its totient is φ = 1120625928.

The previous prime is 1131002167. The next prime is 1131002209. The reversal of 1131002203 is 3022001311.

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 1131002203 - 2⁹ = 1131001691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131002209) 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 3 ways as a sum of consecutive naturals, for example, 5187975 + ... + 5188192.

It is an arithmetic number, because the mean of its divisors is an integer number (285344620).

Almost surely, 2^1131002203 is an apocalyptic number.

1131002203 is a deficient number, since it is larger than the sum of its proper divisors (10376277).

1131002203 is a wasteful number, since it uses less digits than its factorization.

1131002203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376276.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1131002203 is about 33630.3761947439. The cubic root of 1131002203 is about 1041.8882740573. Note that the first 3 decimals are identical.

Adding to 1131002203 its reverse (3022001311), we get a palindrome (4153003514).

The spelling of 1131002203 in words is "one billion, one hundred thirty-one million, two thousand, two hundred three".