20033313012 has 30 divisors (see below), whose sum is σ = 52371038258. Its totient is φ = 6677770896.

The previous prime is 20033312969. The next prime is 20033313019. The reversal of 20033313012 is 21031333002.

20033313012 is a `hidden beast` number, since 200 + 333 + 130 + 1 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 19980953316 + 52359696 = 141354^2 + 7236^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20033313019) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 30915283 + ... + 30915930.

Almost surely, 2^20033313012 is an apocalyptic number.

It is an amenable number.

20033313012 is an abundant number, since it is smaller than the sum of its proper divisors (32337725246).

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

20033313012 is a wasteful number, since it uses less digits than its factorization.

20033313012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61831229 (or 61831218 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20033313012 its reverse (21031333002), we get a palindrome (41064646014).

The spelling of 20033313012 in words is "twenty billion, thirty-three million, three hundred thirteen thousand, twelve".