20313132 has 24 divisors (see below), whose sum is σ = 54168576. Its totient is φ = 5803728.

The previous prime is 20313121. The next prime is 20313133. The reversal of 20313132 is 23131302.

It is not an unprimeable number, because it can be changed into a prime (20313133) by changing a digit.

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, 120828 + ... + 120995.

It is an arithmetic number, because the mean of its divisors is an integer number (2257024).

Almost surely, 2^20313132 is an apocalyptic number.

It is an amenable number.

20313132 is an abundant number, since it is smaller than the sum of its proper divisors (33855444).

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

20313132 is a wasteful number, since it uses less digits than its factorization.

20313132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241837 (or 241835 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 20313132 is about 4507.0092078894. The cubic root of 20313132 is about 272.8510505218.

Adding to 20313132 its reverse (23131302), we get a palindrome (43444434).

The spelling of 20313132 in words is "twenty million, three hundred thirteen thousand, one hundred thirty-two".