1331132512 has 48 divisors (see below), whose sum is σ = 2676013200. Its totient is φ = 651604480.

The previous prime is 1331132501. The next prime is 1331132629. The reversal of 1331132512 is 2152311331.

It is a congruent number.

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, 506562 + ... + 509182.

It is an arithmetic number, because the mean of its divisors is an integer number (55750275).

Almost surely, 2^1331132512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331132512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1338006600).

1331132512 is an abundant number, since it is smaller than the sum of its proper divisors (1344880688).

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

1331132512 is a wasteful number, since it uses less digits than its factorization.

1331132512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2959 (or 2951 counting only the distinct ones).

The product of its digits is 540, while the sum is 22.

The square root of 1331132512 is about 36484.6887337689. The cubic root of 1331132512 is about 1100.0365034718.

Adding to 1331132512 its reverse (2152311331), we get a palindrome (3483443843).

The spelling of 1331132512 in words is "one billion, three hundred thirty-one million, one hundred thirty-two thousand, five hundred twelve".