20311130223 has 12 divisors (see below), whose sum is σ = 29341241800. Its totient is φ = 13539395376.

The previous prime is 20311130183. The next prime is 20311130227. The reversal of 20311130223 is 32203111302.

20311130223 is a `hidden beast` number, since 2 + 0 + 311 + 130 + 223 = 666.

It is not a de Polignac number, because 20311130223 - 2⁶ = 20311130159 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20311130196 and 20311130205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311130227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13873 + ... + 202026.

Almost surely, 2^20311130223 is an apocalyptic number.

20311130223 is a deficient number, since it is larger than the sum of its proper divisors (9030111577).

20311130223 is a wasteful number, since it uses less digits than its factorization.

20311130223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226358 (or 226355 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20311130223 its reverse (32203111302), we get a palindrome (52514241525).

The spelling of 20311130223 in words is "twenty billion, three hundred eleven million, one hundred thirty thousand, two hundred twenty-three".