20102244312 has 32 divisors (see below), whose sum is σ = 50546116080. Its totient is φ = 6662014080.

The previous prime is 20102244311. The next prime is 20102244317. The reversal of 20102244312 is 21344220102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20102244311) 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, 2416639 + ... + 2424942.

Almost surely, 2^20102244312 is an apocalyptic number.

It is an amenable number.

20102244312 is an abundant number, since it is smaller than the sum of its proper divisors (30443871768).

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

20102244312 is a wasteful number, since it uses less digits than its factorization.

20102244312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4841763 (or 4841759 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20102244312 its reverse (21344220102), we get a palindrome (41446464414).

The spelling of 20102244312 in words is "twenty billion, one hundred two million, two hundred forty-four thousand, three hundred twelve".