20299311271 has 8 divisors (see below), whose sum is σ = 20458037600. Its totient is φ = 20141097120.

The previous prime is 20299311247. The next prime is 20299311293. The reversal of 20299311271 is 17211399202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20299311271 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20299311271.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20299311671) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48276 + ... + 207193.

It is an arithmetic number, because the mean of its divisors is an integer number (2557254700).

Almost surely, 2^20299311271 is an apocalyptic number.

20299311271 is a deficient number, since it is larger than the sum of its proper divisors (158726329).

20299311271 is a wasteful number, since it uses less digits than its factorization.

20299311271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256089.

The product of its (nonzero) digits is 13608, while the sum is 37.

The spelling of 20299311271 in words is "twenty billion, two hundred ninety-nine million, three hundred eleven thousand, two hundred seventy-one".