20133203211 has 32 divisors (see below), whose sum is σ = 32553699840. Its totient is φ = 12196245600.

The previous prime is 20133203147. The next prime is 20133203219. The reversal of 20133203211 is 11230233102.

20133203211 is a `hidden beast` number, since 20 + 1 + 3 + 320 + 321 + 1 = 666.

It is not a de Polignac number, because 20133203211 - 2⁶ = 20133203147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20133203219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 671701 + ... + 701033.

It is an arithmetic number, because the mean of its divisors is an integer number (1017303120).

Almost surely, 2^20133203211 is an apocalyptic number.

20133203211 is a deficient number, since it is larger than the sum of its proper divisors (12420496629).

20133203211 is a wasteful number, since it uses less digits than its factorization.

20133203211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31664 (or 31658 counting only the distinct ones).

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

Adding to 20133203211 its reverse (11230233102), we get a palindrome (31363436313).

The spelling of 20133203211 in words is "twenty billion, one hundred thirty-three million, two hundred three thousand, two hundred eleven".