20333113212 has 12 divisors (see below), whose sum is σ = 47443930856. Its totient is φ = 6777704400.

The previous prime is 20333113193. The next prime is 20333113259. The reversal of 20333113212 is 21231133302.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847213039 + ... + 847213062.

Almost surely, 2^20333113212 is an apocalyptic number.

It is an amenable number.

20333113212 is an abundant number, since it is smaller than the sum of its proper divisors (27110817644).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20333113212 is a wasteful number, since it uses less digits than its factorization.

20333113212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694426108 (or 1694426106 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20333113212 its reverse (21231133302), we get a palindrome (41564246514).

The spelling of 20333113212 in words is "twenty billion, three hundred thirty-three million, one hundred thirteen thousand, two hundred twelve".