20203313311200 has 72 divisors (see below), whose sum is σ = 65761784835768. Its totient is φ = 5387550215680.

The previous prime is 20203313311171. The next prime is 20203313311201. The reversal of 20203313311200 is 211331330202.

It is a super-2 number, since 2×20203313311200² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203313311201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4209021207 + ... + 4209026006.

It is an arithmetic number, because the mean of its divisors is an integer number (913358122719).

Almost surely, 2^{20203313311200} is an apocalyptic number.

20203313311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20203313311200 is an abundant number, since it is smaller than the sum of its proper divisors (45558471524568).

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

20203313311200 is a wasteful number, since it uses less digits than its factorization.

20203313311200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418047236 (or 8418047223 counting only the distinct ones).

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

Adding to 20203313311200 its reverse (211331330202), we get a palindrome (20414644641402).

The spelling of 20203313311200 in words is "twenty trillion, two hundred three billion, three hundred thirteen million, three hundred eleven thousand, two hundred".