20303213312100 has 36 divisors (see below), whose sum is σ = 58743963850544. Its totient is φ = 5414190216480.

The previous prime is 20303213312071. The next prime is 20303213312113. The reversal of 20303213312100 is 121331230302.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 33838688554 + ... + 33838689153.

Almost surely, 2^{20303213312100} is an apocalyptic number.

20303213312100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20303213312100 is an abundant number, since it is smaller than the sum of its proper divisors (38440750538444).

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

20303213312100 is a wasteful number, since it uses less digits than its factorization.

20303213312100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67677377724 (or 67677377717 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20303213312100 its reverse (121331230302), we get a palindrome (20424544542402).

The spelling of 20303213312100 in words is "twenty trillion, three hundred three billion, two hundred thirteen million, three hundred twelve thousand, one hundred".