20311133230233 has 48 divisors (see below), whose sum is σ = 29885457888000. Its totient is φ = 13291137828864.

The previous prime is 20311133230217. The next prime is 20311133230253. The reversal of 20311133230233 is 33203233111302.

20311133230233 is a `hidden beast` number, since 2 + 0 + 311 + 1 + 3 + 323 + 0 + 23 + 3 = 666.

It is not a de Polignac number, because 20311133230233 - 2⁴ = 20311133230217 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20311133230197 and 20311133230206.

It is not an unprimeable number, because it can be changed into a prime (20311133230253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45026158 + ... + 45475016.

It is an arithmetic number, because the mean of its divisors is an integer number (622613706000).

Almost surely, 2^{20311133230233} is an apocalyptic number.

It is an amenable number.

20311133230233 is a deficient number, since it is larger than the sum of its proper divisors (9574324657767).

20311133230233 is a wasteful number, since it uses less digits than its factorization.

20311133230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 449406 (or 449403 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 20311133230233 its reverse (33203233111302), we get a palindrome (53514366341535).

The spelling of 20311133230233 in words is "twenty trillion, three hundred eleven billion, one hundred thirty-three million, two hundred thirty thousand, two hundred thirty-three".