20132130321 has 24 divisors (see below), whose sum is σ = 29479728096. Its totient is φ = 13237358400.

The previous prime is 20132130313. The next prime is 20132130331. The reversal of 20132130321 is 12303123102.

20132130321 is a `hidden beast` number, since 20 + 1 + 321 + 3 + 0 + 321 = 666.

It is not a de Polignac number, because 20132130321 - 2³ = 20132130313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20132130294 and 20132130303.

It is not an unprimeable number, because it can be changed into a prime (20132130331) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 426526 + ... + 471368.

It is an arithmetic number, because the mean of its divisors is an integer number (1228322004).

Almost surely, 2^20132130321 is an apocalyptic number.

It is an amenable number.

20132130321 is a deficient number, since it is larger than the sum of its proper divisors (9347597775).

20132130321 is a wasteful number, since it uses less digits than its factorization.

20132130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45533 (or 45530 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20132130321 its reverse (12303123102), we get a palindrome (32435253423).

The spelling of 20132130321 in words is "twenty billion, one hundred thirty-two million, one hundred thirty thousand, three hundred twenty-one".