1131033252 has 24 divisors (see below), whose sum is σ = 2639621376. Its totient is φ = 376933408.

The previous prime is 1131033251. The next prime is 1131033259. The reversal of 1131033252 is 2523301311.

It is not an unprimeable number, because it can be changed into a prime (1131033251) 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 7 ways as a sum of consecutive naturals, for example, 109453 + ... + 119339.

It is an arithmetic number, because the mean of its divisors is an integer number (109984224).

Almost surely, 2^1131033252 is an apocalyptic number.

1131033252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131033252 is an abundant number, since it is smaller than the sum of its proper divisors (1508588124).

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

1131033252 is a wasteful number, since it uses less digits than its factorization.

1131033252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19427 (or 19425 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1131033252 is about 33630.8378129359. The cubic root of 1131033252 is about 1041.8978081657.

Adding to 1131033252 its reverse (2523301311), we get a palindrome (3654334563).

The spelling of 1131033252 in words is "one billion, one hundred thirty-one million, thirty-three thousand, two hundred fifty-two".