1331304132 has 12 divisors (see below), whose sum is σ = 3106376336. Its totient is φ = 443768040.

The previous prime is 1331304113. The next prime is 1331304197. The reversal of 1331304132 is 2314031331.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 1331304099 and 1331304108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55470994 + ... + 55471017.

Almost surely, 2^1331304132 is an apocalyptic number.

1331304132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331304132 is an abundant number, since it is smaller than the sum of its proper divisors (1775072204).

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

1331304132 is a wasteful number, since it uses less digits than its factorization.

1331304132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110942018 (or 110942016 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1331304132 is about 36487.0406034800. The cubic root of 1331304132 is about 1100.0837765395.

Adding to 1331304132 its reverse (2314031331), we get a palindrome (3645335463).

The spelling of 1331304132 in words is "one billion, three hundred thirty-one million, three hundred four thousand, one hundred thirty-two".