1131403232 has 12 divisors (see below), whose sum is σ = 2227450176. Its totient is φ = 565701600.

The previous prime is 1131403199. The next prime is 1131403237. The reversal of 1131403232 is 2323041311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131403237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17678144 + ... + 17678207.

It is an arithmetic number, because the mean of its divisors is an integer number (185620848).

Almost surely, 2^1131403232 is an apocalyptic number.

It is an amenable number.

1131403232 is a deficient number, since it is larger than the sum of its proper divisors (1096046944).

1131403232 is an equidigital number, since it uses as much as digits as its factorization.

1131403232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35356361 (or 35356353 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1131403232 is about 33636.3379695234. The cubic root of 1131403232 is about 1042.0114032127.

Adding to 1131403232 its reverse (2323041311), we get a palindrome (3454444543).

The spelling of 1131403232 in words is "one billion, one hundred thirty-one million, four hundred three thousand, two hundred thirty-two".