1131103000 has 32 divisors (see below), whose sum is σ = 2646783360. Its totient is φ = 452440800.

The previous prime is 1131102989. The next prime is 1131103013. The reversal of 1131103000 is 3011311.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564552 + ... + 566551.

It is an arithmetic number, because the mean of its divisors is an integer number (82711980).

Almost surely, 2^1131103000 is an apocalyptic number.

1131103000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131103000 is an abundant number, since it is smaller than the sum of its proper divisors (1515680360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1131103000 is a wasteful number, since it uses less digits than its factorization.

1131103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131124 (or 1131110 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1131103000 is about 33631.8747618981. The cubic root of 1131103000 is about 1041.9192248053.

Adding to 1131103000 its reverse (3011311), we get a palindrome (1134114311).

The spelling of 1131103000 in words is "one billion, one hundred thirty-one million, one hundred three thousand".