20110001200 has 60 divisors (see below), whose sum is σ = 48812457400. Its totient is φ = 7961057280.

The previous prime is 20110001173. The next prime is 20110001207. The reversal of 20110001200 is 210001102.

It is not an unprimeable number, because it can be changed into a prime (20110001207) 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, 220350 + ... + 297949.

Almost surely, 2^20110001200 is an apocalyptic number.

20110001200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20110001200 is an abundant number, since it is smaller than the sum of its proper divisors (28702456200).

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

20110001200 is a wasteful number, since it uses less digits than its factorization.

20110001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518414 (or 518403 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 20110001200 its reverse (210001102), we get a palindrome (20320002302).

The spelling of 20110001200 in words is "twenty billion, one hundred ten million, one thousand, two hundred".