20000311011 has 24 divisors (see below), whose sum is σ = 31090179744. Its totient is φ = 12343484160.

The previous prime is 20000311003. The next prime is 20000311033. The reversal of 20000311011 is 11011300002.

It is not a de Polignac number, because 20000311011 - 2³ = 20000311003 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20000310984 and 20000311002.

It is not an unprimeable number, because it can be changed into a prime (20000311061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1062151 + ... + 1080816.

It is an arithmetic number, because the mean of its divisors is an integer number (1295424156).

Almost surely, 2^20000311011 is an apocalyptic number.

20000311011 is a deficient number, since it is larger than the sum of its proper divisors (11089868733).

20000311011 is a wasteful number, since it uses less digits than its factorization.

20000311011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143051 (or 2143048 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

Adding to 20000311011 its reverse (11011300002), we get a palindrome (31011611013).

The spelling of 20000311011 in words is "twenty billion, three hundred eleven thousand, eleven".