20001203312 has 20 divisors (see below), whose sum is σ = 38754524016. Its totient is φ = 10000035840.

The previous prime is 20001203293. The next prime is 20001203323. The reversal of 20001203312 is 21330210002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 536048 + ... + 572144.

Almost surely, 2^20001203312 is an apocalyptic number.

It is an amenable number.

20001203312 is a deficient number, since it is larger than the sum of its proper divisors (18753320704).

20001203312 is a wasteful number, since it uses less digits than its factorization.

20001203312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70736 (or 70730 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20001203312 its reverse (21330210002), we get a palindrome (41331413314).

The spelling of 20001203312 in words is "twenty billion, one million, two hundred three thousand, three hundred twelve".