20011433312 has 72 divisors (see below), whose sum is σ = 45170898696. Its totient is φ = 8692709376.

The previous prime is 20011433297. The next prime is 20011433333. The reversal of 20011433312 is 21333411002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16898 + ... + 200769.

It is an arithmetic number, because the mean of its divisors is an integer number (627373593).

Almost surely, 2^20011433312 is an apocalyptic number.

It is an amenable number.

20011433312 is an abundant number, since it is smaller than the sum of its proper divisors (25159465384).

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

20011433312 is a wasteful number, since it uses less digits than its factorization.

20011433312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217720 (or 217699 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 20011433312 its reverse (21333411002), we get a palindrome (41344844314).

The spelling of 20011433312 in words is "twenty billion, eleven million, four hundred thirty-three thousand, three hundred twelve".