1130231000 has 64 divisors (see below), whose sum is σ = 2656368000. Its totient is φ = 450105600.

The previous prime is 1130230999. The next prime is 1130231021. The reversal of 1130231000 is 1320311.

It is a super-2 number, since 2×1130231000² = 2554844226722000000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 236636 + ... + 241364.

It is an arithmetic number, because the mean of its divisors is an integer number (41505750).

Almost surely, 2^1130231000 is an apocalyptic number.

1130231000 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 1130231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1328184000).

1130231000 is an abundant number, since it is smaller than the sum of its proper divisors (1526137000).

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

1130231000 is a wasteful number, since it uses less digits than its factorization.

1130231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4989 (or 4975 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1130231000 is about 33618.9083701419. The cubic root of 1130231000 is about 1041.6514074209.

Adding to 1130231000 its reverse (1320311), we get a palindrome (1131551311).

The spelling of 1130231000 in words is "one billion, one hundred thirty million, two hundred thirty-one thousand".