1131442032 has 40 divisors (see below), whose sum is σ = 3340448896. Its totient is φ = 323269056.

The previous prime is 1131442031. The next prime is 1131442049. The reversal of 1131442032 is 2302441311.

It is a super-2 number, since 2×1131442032² = 2560322143552578048, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131442031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1683358 + ... + 1684029.

Almost surely, 2^1131442032 is an apocalyptic number.

1131442032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131442032 is an abundant number, since it is smaller than the sum of its proper divisors (2209006864).

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

1131442032 is a wasteful number, since it uses less digits than its factorization.

1131442032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367405 (or 3367399 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1131442032 is about 33636.9147217755. The cubic root of 1131442032 is about 1042.0233145511.

Adding to 1131442032 its reverse (2302441311), we get a palindrome (3433883343).

The spelling of 1131442032 in words is "one billion, one hundred thirty-one million, four hundred forty-two thousand, thirty-two".