1331151132 has 12 divisors (see below), whose sum is σ = 3106019336. Its totient is φ = 443717040.

The previous prime is 1331151121. The next prime is 1331151137. The reversal of 1331151132 is 2311511331.

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 = 1331151099 and 1331151108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331151137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55464619 + ... + 55464642.

Almost surely, 2^1331151132 is an apocalyptic number.

1331151132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1331151132 is an abundant number, since it is smaller than the sum of its proper divisors (1774868204).

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

1331151132 is a wasteful number, since it uses less digits than its factorization.

1331151132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110929268 (or 110929266 counting only the distinct ones).

The product of its digits is 270, while the sum is 21.

The square root of 1331151132 is about 36484.9439084124. The cubic root of 1331151132 is about 1100.0416325841.

Adding to 1331151132 its reverse (2311511331), we get a palindrome (3642662463).

It can be divided in two parts, 1 and 331151132, that added together give a palindrome (331151133).

The spelling of 1331151132 in words is "one billion, three hundred thirty-one million, one hundred fifty-one thousand, one hundred thirty-two".