20031204323130 has 128 divisors (see below), whose sum is σ = 64548104656896. Its totient is φ = 3842149075200.

The previous prime is 20031204323099. The next prime is 20031204323131. The reversal of 20031204323130 is 3132340213002.

It is a self number, because there is not a number n which added to its sum of digits gives 20031204323130.

It is not an unprimeable number, because it can be changed into a prime (20031204323131) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 333489856 + ... + 333549915.

It is an arithmetic number, because the mean of its divisors is an integer number (504282067632).

Almost surely, 2^{20031204323130} is an apocalyptic number.

20031204323130 is an abundant number, since it is smaller than the sum of its proper divisors (44516900333766).

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

20031204323130 is a wasteful number, since it uses less digits than its factorization.

20031204323130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667039812.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20031204323130 its reverse (3132340213002), we get a palindrome (23163544536132).

The spelling of 20031204323130 in words is "twenty trillion, thirty-one billion, two hundred four million, three hundred twenty-three thousand, one hundred thirty".