20131132 has 24 divisors (see below), whose sum is σ = 40360320. Its totient is φ = 8606640.

The previous prime is 20131129. The next prime is 20131147. The reversal of 20131132 is 23113102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17907 + ... + 18997.

It is an arithmetic number, because the mean of its divisors is an integer number (1681680).

Almost surely, 2^20131132 is an apocalyptic number.

It is an amenable number.

20131132 is an abundant number, since it is smaller than the sum of its proper divisors (20229188).

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

20131132 is a wasteful number, since it uses less digits than its factorization.

20131132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1761 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 20131132 is about 4486.7730051787. The cubic root of 20131132 is about 272.0337148231.

Adding to 20131132 its reverse (23113102), we get a palindrome (43244234).

The spelling of 20131132 in words is "twenty million, one hundred thirty-one thousand, one hundred thirty-two".