20132130 has 64 divisors (see below), whose sum is σ = 51010560. Its totient is φ = 5075136.

The previous prime is 20132129. The next prime is 20132149. The reversal of 20132130 is 3123102.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 112381 + ... + 112559.

It is an arithmetic number, because the mean of its divisors is an integer number (797040).

Almost surely, 2^20132130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20132130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25505280).

20132130 is an abundant number, since it is smaller than the sum of its proper divisors (30878430).

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

20132130 is a wasteful number, since it uses less digits than its factorization.

20132130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20132130 is about 4486.8842195894. The cubic root of 20132130 is about 272.0382101021.

Adding to 20132130 its reverse (3123102), we get a palindrome (23255232).

Subtracting from 20132130 its reverse (3123102), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 20132130 in words is "twenty million, one hundred thirty-two thousand, one hundred thirty".