1331201132 has 24 divisors (see below), whose sum is σ = 2406942720. Its totient is φ = 643542480.

The previous prime is 1331201119. The next prime is 1331201141. The reversal of 1331201132 is 2311021331.

It is a self number, because there is not a number n which added to its sum of digits gives 1331201132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151853 + ... + 160379.

It is an arithmetic number, because the mean of its divisors is an integer number (100289280).

Almost surely, 2^1331201132 is an apocalyptic number.

It is an amenable number.

1331201132 is a deficient number, since it is larger than the sum of its proper divisors (1075741588).

1331201132 is a wasteful number, since it uses less digits than its factorization.

1331201132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9821 (or 9819 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1331201132 is about 36485.6291161328. The cubic root of 1331201132 is about 1100.0554054737.

Adding to 1331201132 its reverse (2311021331), we get a palindrome (3642222463).

The spelling of 1331201132 in words is "one billion, three hundred thirty-one million, two hundred one thousand, one hundred thirty-two".