20231203312 has 20 divisors (see below), whose sum is σ = 39461034600. Its totient is φ = 10047710528.

The previous prime is 20231203297. The next prime is 20231203319. The reversal of 20231203312 is 21330213202.

It is a self number, because there is not a number n which added to its sum of digits gives 20231203312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20231203319) 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, 4240738 + ... + 4245505.

It is an arithmetic number, because the mean of its divisors is an integer number (1973051730).

Almost surely, 2^20231203312 is an apocalyptic number.

It is an amenable number.

20231203312 is a deficient number, since it is larger than the sum of its proper divisors (19229831288).

20231203312 is a wasteful number, since it uses less digits than its factorization.

20231203312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8486400 (or 8486394 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20231203312 its reverse (21330213202), we get a palindrome (41561416514).

The spelling of 20231203312 in words is "twenty billion, two hundred thirty-one million, two hundred three thousand, three hundred twelve".