20311030011 has 8 divisors (see below), whose sum is σ = 27089536320. Its totient is φ = 13536605192.

The previous prime is 20311029983. The next prime is 20311030021. The reversal of 20311030011 is 11003011302.

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

It is a cyclic number.

It is not a de Polignac number, because 20311030011 - 2¹¹ = 20311027963 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20311030021) 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, 1008741 + ... + 1028678.

It is an arithmetic number, because the mean of its divisors is an integer number (3386192040).

Almost surely, 2^20311030011 is an apocalyptic number.

20311030011 is a deficient number, since it is larger than the sum of its proper divisors (6778506309).

20311030011 is a wasteful number, since it uses less digits than its factorization.

20311030011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2040745.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 20311030011 its reverse (11003011302), we get a palindrome (31314041313).

The spelling of 20311030011 in words is "twenty billion, three hundred eleven million, thirty thousand, eleven".