1131003234 has 72 divisors (see below), whose sum is σ = 2740380240. Its totient is φ = 336120192.

The previous prime is 1131003229. The next prime is 1131003241. The reversal of 1131003234 is 4323001311.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 93117 + ... + 104559.

Almost surely, 2^1131003234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131003234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1370190120).

1131003234 is an abundant number, since it is smaller than the sum of its proper divisors (1609377006).

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

1131003234 is a wasteful number, since it uses less digits than its factorization.

1131003234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11504 (or 11484 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1131003234 is about 33630.3915231447. The cubic root of 1131003234 is about 1041.8885906456. Note that the first 3 decimals are identical.

Adding to 1131003234 its reverse (4323001311), we get a palindrome (5454004545).

The spelling of 1131003234 in words is "one billion, one hundred thirty-one million, three thousand, two hundred thirty-four".