1131214032 has 160 divisors (see below), whose sum is σ = 3547272960. Its totient is φ = 343042560.

The previous prime is 1131214031. The next prime is 1131214057. The reversal of 1131214032 is 2304121311.

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

It is a junction number, because it is equal to n+sod(n) for n = 1131213996 and 1131214014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131214031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 397318 + ... + 400154.

It is an arithmetic number, because the mean of its divisors is an integer number (22170456).

Almost surely, 2^1131214032 is an apocalyptic number.

1131214032 is a gapful number since it is divisible by the number (12) 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 1131214032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1773636480).

1131214032 is an abundant number, since it is smaller than the sum of its proper divisors (2416058928).

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

1131214032 is a wasteful number, since it uses less digits than its factorization.

1131214032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2938 (or 2926 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1131214032 is about 33633.5254173570. The cubic root of 1131214032 is about 1041.9533161864.

Adding to 1131214032 its reverse (2304121311), we get a palindrome (3435335343).

The spelling of 1131214032 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, thirty-two".