20001312203130 has 192 divisors, whose sum is σ = 56486387318400. Its totient is φ = 4893092789760.

The previous prime is 20001312203129. The next prime is 20001312203143. The reversal of 20001312203130 is 3130221310002.

20001312203130 is a `hidden beast` number, since 2 + 0 + 0 + 0 + 131 + 220 + 313 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12600856 + ... + 14099084.

It is an arithmetic number, because the mean of its divisors is an integer number (294199933950).

Almost surely, 2^{20001312203130} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001312203130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28243193659200).

20001312203130 is an abundant number, since it is smaller than the sum of its proper divisors (36485075115270).

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

20001312203130 is a wasteful number, since it uses less digits than its factorization.

20001312203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1498509 (or 1498506 counting only the distinct ones).

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

Adding to 20001312203130 its reverse (3130221310002), we get a palindrome (23131533513132).

The spelling of 20001312203130 in words is "twenty trillion, one billion, three hundred twelve million, two hundred three thousand, one hundred thirty".