20133203312 has 10 divisors (see below), whose sum is σ = 39008081448. Its totient is φ = 10066601648.

The previous prime is 20133203303. The next prime is 20133203317. The reversal of 20133203312 is 21330233102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20133203317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 629162588 + ... + 629162619.

Almost surely, 2^20133203312 is an apocalyptic number.

It is an amenable number.

20133203312 is a deficient number, since it is larger than the sum of its proper divisors (18874878136).

20133203312 is a wasteful number, since it uses less digits than its factorization.

20133203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1258325215 (or 1258325209 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20133203312 its reverse (21330233102), we get a palindrome (41463436414).

The spelling of 20133203312 in words is "twenty billion, one hundred thirty-three million, two hundred three thousand, three hundred twelve".