20111113233200 has 60 divisors (see below), whose sum is σ = 52709399512728. Its totient is φ = 7313132083200.

The previous prime is 20111113233199. The next prime is 20111113233203. The reversal of 20111113233200 is 233231111102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is not an unprimeable number, because it can be changed into a prime (20111113233203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2285349377 + ... + 2285358176.

Almost surely, 2^{20111113233200} is an apocalyptic number.

20111113233200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111113233200 is an abundant number, since it is smaller than the sum of its proper divisors (32598286279528).

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

20111113233200 is a wasteful number, since it uses less digits than its factorization.

20111113233200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4570707582 (or 4570707571 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20111113233200 its reverse (233231111102), we get a palindrome (20344344344302).

The spelling of 20111113233200 in words is "twenty trillion, one hundred eleven billion, one hundred thirteen million, two hundred thirty-three thousand, two hundred".