20502050312 has 16 divisors (see below), whose sum is σ = 38982772800. Its totient is φ = 10106644240.

The previous prime is 20502050311. The next prime is 20502050323. The reversal of 20502050312 is 21305020502.

It is not an unprimeable number, because it can be changed into a prime (20502050311) 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, 18047012 + ... + 18048147.

It is an arithmetic number, because the mean of its divisors is an integer number (2436423300).

Almost surely, 2^20502050312 is an apocalyptic number.

It is an amenable number.

20502050312 is a deficient number, since it is larger than the sum of its proper divisors (18480722488).

20502050312 is a wasteful number, since it uses less digits than its factorization.

20502050312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36095236 (or 36095232 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 20.

Adding to 20502050312 its reverse (21305020502), we get a palindrome (41807070814).

The spelling of 20502050312 in words is "twenty billion, five hundred two million, fifty thousand, three hundred twelve".