20243332312 has 32 divisors (see below), whose sum is σ = 43596576000. Its totient is φ = 8632112544.

The previous prime is 20243332273. The next prime is 20243332313. The reversal of 20243332312 is 21323334202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20243332313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 897118 + ... + 919405.

It is an arithmetic number, because the mean of its divisors is an integer number (1362393000).

Almost surely, 2^20243332312 is an apocalyptic number.

It is an amenable number.

20243332312 is an abundant number, since it is smaller than the sum of its proper divisors (23353243688).

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

20243332312 is a wasteful number, since it uses less digits than its factorization.

20243332312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1816735 (or 1816731 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 20243332312 its reverse (21323334202), we get a palindrome (41566666514).

The spelling of 20243332312 in words is "twenty billion, two hundred forty-three million, three hundred thirty-two thousand, three hundred twelve".