1331132112 has 60 divisors (see below), whose sum is σ = 3727774180. Its totient is φ = 443418624.

The previous prime is 1331132093. The next prime is 1331132119. The reversal of 1331132112 is 2112311331.

1331132112 is a `hidden beast` number, since 1 + 331 + 1 + 321 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1259966016 + 71166096 = 35496^2 + 8436^2 .

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331132119) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 418464 + ... + 421632.

Almost surely, 2^1331132112 is an apocalyptic number.

1331132112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331132112 is an abundant number, since it is smaller than the sum of its proper divisors (2396642068).

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

1331132112 is a wasteful number, since it uses less digits than its factorization.

1331132112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6100 (or 6091 counting only the distinct ones).

The product of its digits is 108, while the sum is 18.

The square root of 1331132112 is about 36484.6832520169. The cubic root of 1331132112 is about 1100.0363932863.

Adding to 1331132112 its reverse (2112311331), we get a palindrome (3443443443).

The spelling of 1331132112 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, one hundred twelve".