20011303311 has 8 divisors (see below), whose sum is σ = 26684148480. Its totient is φ = 13339663512.

The previous prime is 20011303309. The next prime is 20011303331. The reversal of 20011303311 is 11330311002.

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

It is not a de Polignac number, because 20011303311 - 2¹ = 20011303309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011303331) 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, 261865 + ... + 329538.

It is an arithmetic number, because the mean of its divisors is an integer number (3335518560).

Almost surely, 2^20011303311 is an apocalyptic number.

20011303311 is a deficient number, since it is larger than the sum of its proper divisors (6672845169).

20011303311 is a wasteful number, since it uses less digits than its factorization.

20011303311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602685.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 20011303311 its reverse (11330311002), we get a palindrome (31341614313).

The spelling of 20011303311 in words is "twenty billion, eleven million, three hundred three thousand, three hundred eleven".