1200200320105 has 4 divisors (see below), whose sum is σ = 1440240384132. Its totient is φ = 960160256080.

The previous prime is 1200200320097. The next prime is 1200200320117. The reversal of 1200200320105 is 5010230020021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 892775537424 + 307424782681 = 944868^2 + 554459^2 .

It is not a de Polignac number, because 1200200320105 - 2³ = 1200200320097 is a prime.

It is a super-2 number, since 2×1200200320105² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120020032006 + ... + 120020032015.

It is an arithmetic number, because the mean of its divisors is an integer number (360060096033).

Almost surely, 2^{1200200320105} is an apocalyptic number.

It is an amenable number.

1200200320105 is a deficient number, since it is larger than the sum of its proper divisors (240040064027).

1200200320105 is an equidigital number, since it uses as much as digits as its factorization.

1200200320105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240040064026.

The product of its (nonzero) digits is 120, while the sum is 16.

Adding to 1200200320105 its reverse (5010230020021), we get a palindrome (6210430340126).

The spelling of 1200200320105 in words is "one trillion, two hundred billion, two hundred million, three hundred twenty thousand, one hundred five".