20333232012 has 12 divisors (see below), whose sum is σ = 47444208056. Its totient is φ = 6777744000.

The previous prime is 20333232001. The next prime is 20333232013. The reversal of 20333232012 is 21023233302.

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

It is a self number, because there is not a number n which added to its sum of digits gives 20333232012.

It is not an unprimeable number, because it can be changed into a prime (20333232013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 847217989 + ... + 847218012.

Almost surely, 2^20333232012 is an apocalyptic number.

It is an amenable number.

20333232012 is an abundant number, since it is smaller than the sum of its proper divisors (27110976044).

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

20333232012 is a wasteful number, since it uses less digits than its factorization.

20333232012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694436008 (or 1694436006 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20333232012 its reverse (21023233302), we get a palindrome (41356465314).

The spelling of 20333232012 in words is "twenty billion, three hundred thirty-three million, two hundred thirty-two thousand, twelve".