20012313330 has 128 divisors (see below), whose sum is σ = 55308960000. Its totient is φ = 5143025664.

The previous prime is 20012313319. The next prime is 20012313353. The reversal of 20012313330 is 3331321002.

20012313330 is a `hidden beast` number, since 20 + 0 + 1 + 2 + 313 + 330 = 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 polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4844706 + ... + 4848834.

It is an arithmetic number, because the mean of its divisors is an integer number (432101250).

Almost surely, 2^20012313330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20012313330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27654480000).

20012313330 is an abundant number, since it is smaller than the sum of its proper divisors (35296646670).

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

20012313330 is a wasteful number, since it uses less digits than its factorization.

20012313330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4793 (or 4787 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20012313330 its reverse (3331321002), we get a palindrome (23343634332).

The spelling of 20012313330 in words is "twenty billion, twelve million, three hundred thirteen thousand, three hundred thirty".