1101200113 has 8 divisors (see below), whose sum is σ = 1192927400. Its totient is φ = 1016490384.

The previous prime is 1101200101. The next prime is 1101200123. The reversal of 1101200113 is 3110021011.

It can be written as a sum of positive squares in 4 ways, for example, as 421398784 + 679801329 = 20528^2 + 26073^2 .

It is not a de Polignac number, because 1101200113 - 2¹³ = 1101191921 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1101200113.

It is not an unprimeable number, because it can be changed into a prime (1101200123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248418 + ... + 252811.

It is an arithmetic number, because the mean of its divisors is an integer number (149115925).

Almost surely, 2^1101200113 is an apocalyptic number.

1101200113 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1101200113 is a deficient number, since it is larger than the sum of its proper divisors (91727287).

1101200113 is an frugal number, since it uses more digits than its factorization.

1101200113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501268 (or 501242 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1101200113 is about 33184.3353557066. The cubic root of 1101200113 is about 1032.6553889487.

Adding to 1101200113 its reverse (3110021011), we get a palindrome (4211221124).

The spelling of 1101200113 in words is "one billion, one hundred one million, two hundred thousand, one hundred thirteen".