20000130912 has 36 divisors (see below), whose sum is σ = 56875373100. Its totient is φ = 6666710208.

The previous prime is 20000130881. The next prime is 20000130937. The reversal of 20000130912 is 21903100002.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34722162 + ... + 34722737.

It is an arithmetic number, because the mean of its divisors is an integer number (1579871475).

Almost surely, 2^20000130912 is an apocalyptic number.

It is an amenable number.

20000130912 is an abundant number, since it is smaller than the sum of its proper divisors (36875242188).

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

20000130912 is a wasteful number, since it uses less digits than its factorization.

20000130912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69444915 (or 69444904 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20000130912 its reverse (21903100002), we get a palindrome (41903230914).

The spelling of 20000130912 in words is "twenty billion, one hundred thirty thousand, nine hundred twelve".