201020323130 has 64 divisors (see below), whose sum is σ = 421241720832. Its totient is φ = 68256599040.

The previous prime is 201020323123. The next prime is 201020323199. The reversal of 201020323130 is 31323020102.

It is a super-2 number, since 2×201020323130² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a junction number, because it is equal to n+sod(n) for n = 201020323099 and 201020323108.

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, 185729 + ... + 660708.

It is an arithmetic number, because the mean of its divisors is an integer number (6581901888).

Almost surely, 2^201020323130 is an apocalyptic number.

201020323130 is an abundant number, since it is smaller than the sum of its proper divisors (220221397702).

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

201020323130 is a wasteful number, since it uses less digits than its factorization.

201020323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846599.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 201020323130 its reverse (31323020102), we get a palindrome (232343343232).

The spelling of 201020323130 in words is "two hundred one billion, twenty million, three hundred twenty-three thousand, one hundred thirty".