1331301132 has 72 divisors (see below), whose sum is σ = 3927845376. Its totient is φ = 372275424.

The previous prime is 1331301131. The next prime is 1331301151. The reversal of 1331301132 is 2311031331.

It is a happy number.

1331301132 is a `hidden beast` number, since 1 + 331 + 301 + 1 + 32 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (1331301131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44358 + ... + 68045.

It is an arithmetic number, because the mean of its divisors is an integer number (54553408).

Almost surely, 2^1331301132 is an apocalyptic number.

1331301132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331301132 is an abundant number, since it is smaller than the sum of its proper divisors (2596544244).

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

1331301132 is a wasteful number, since it uses less digits than its factorization.

1331301132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112467 (or 112462 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1331301132 is about 36486.9994929701. Note that the first 3 decimals coincide. The cubic root of 1331301132 is about 1100.0829502185.

Adding to 1331301132 its reverse (2311031331), we get a palindrome (3642332463).

The spelling of 1331301132 in words is "one billion, three hundred thirty-one million, three hundred one thousand, one hundred thirty-two".