1133031000 has 128 divisors (see below), whose sum is σ = 3549873600. Its totient is φ = 300876800.

The previous prime is 1133030981. The next prime is 1133031007. The reversal of 1133031000 is 1303311.

It is a super-2 number, since 2×1133031000² = 2567518493922000000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133031007) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 878356 + ... + 879644.

Almost surely, 2^1133031000 is an apocalyptic number.

1133031000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1133031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1774936800).

1133031000 is an abundant number, since it is smaller than the sum of its proper divisors (2416842600).

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

1133031000 is a wasteful number, since it uses less digits than its factorization.

1133031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1606 (or 1592 counting only the distinct ones).

The product of its (nonzero) digits is 27, while the sum is 12.

The square root of 1133031000 is about 33660.5258425949. The cubic root of 1133031000 is about 1042.5108832660.

Adding to 1133031000 its reverse (1303311), we get a palindrome (1134334311).

The spelling of 1133031000 in words is "one billion, one hundred thirty-three million, thirty-one thousand".