20350021300 has 72 divisors (see below), whose sum is σ = 52096110080. Its totient is φ = 6752073600.

The previous prime is 20350021273. The next prime is 20350021301. The reversal of 20350021300 is 312005302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20350021301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 447195 + ... + 490594.

Almost surely, 2^20350021300 is an apocalyptic number.

20350021300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20350021300 is an abundant number, since it is smaller than the sum of its proper divisors (31746088780).

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

20350021300 is a wasteful number, since it uses less digits than its factorization.

20350021300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937841 (or 937834 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 16.

Adding to 20350021300 its reverse (312005302), we get a palindrome (20662026602).

It can be divided in two parts, 2035002 and 1300, that added together give a palindrome (2036302).

The spelling of 20350021300 in words is "twenty billion, three hundred fifty million, twenty-one thousand, three hundred".